diff --git a/fir_client/src/components/apps/FirApps.vue b/fir_client/src/components/apps/FirApps.vue
index 7acb684..59bb21c 100644
--- a/fir_client/src/components/apps/FirApps.vue
+++ b/fir_client/src/components/apps/FirApps.vue
@@ -445,8 +445,8 @@
               <div>
                 <el-tooltip placement="top">
                   <div slot="content">
-                    1.下载应用，每100M消耗一次下载次数<br>
-                    2.超级签下载，下载消耗次数翻倍<br>
+                    1.下载应用，每 {{ times_info.every_size|diskSize }} 消耗 {{ times_info.base_times / 100 }} 下载次数<br>
+                    2.私有存储模式下载应用，每 {{ times_info.every_size|diskSize }} 消耗 {{ times_info.private_times / 100 }} 下载次数<br>
                   </div>
                   <span class="name">购买次数</span>
                 </el-tooltip>
@@ -1167,6 +1167,10 @@ export default {
     getDelappTitle() {
       return `删除应用 ${this.delapp.name}`
     },
+    times_info() {
+      let times_info = this.$store.state.userinfo.times_info
+      return times_info ? times_info : {}
+    }
   },
   filters: {
     diskSize,
diff --git a/fir_client/src/components/user/FirUserStorage.vue b/fir_client/src/components/user/FirUserStorage.vue
index 8d308e9..ffdeefd 100644
--- a/fir_client/src/components/user/FirUserStorage.vue
+++ b/fir_client/src/components/user/FirUserStorage.vue
@@ -191,6 +191,37 @@
         <el-button @click="shareVisible=false">取消</el-button>
       </el-form>
     </el-dialog>
+    <el-dialog :close-on-click-modal="false" :destroy-on-close="true" :visible.sync="exchangeVisible"
+               style="text-align:center" title="存储扩容" width="800px">
+      <el-tag style="margin-bottom: 20px" type="warning">请勿多次购买，多次购买，将按照最大的扩容容量进行计算</el-tag>
+      <el-form label-width="120px">
+        <el-form-item label="购买时间" style="width: 100%">
+          <el-radio-group v-model="exchange_prices_key" size="small">
+            <el-radio v-for="pay in exchange_prices.pay_times" :key="pay.name" :label="pay.name" border>
+              {{ pay.title }}
+            </el-radio>
+          </el-radio-group>
+        </el-form-item>
+
+        <el-form-item label="扩容存储大小" style="width: 100%;text-align: left">
+          <el-row :gutter="24">
+            <el-col :span="10">
+              <el-input-number v-model="exchange_number" :max="999999999" :min="10" :step="10">
+              </el-input-number>
+            </el-col>
+            <el-col :span="13">
+              <el-tag style="margin-left: 30px">扩容存储空间大小 {{ exchange_number }} GB</el-tag>
+            </el-col>
+          </el-row>
+        </el-form-item>
+        <el-form-item label="所消耗下载次数" style="width: 100%;text-align: left">
+          <el-tag style="margin-left: 30px"> {{ exchangetimes }}</el-tag>
+        </el-form-item>
+
+        <el-button @click="sureExchangeFun(exchange_number,exchange_prices_key)">确定扩容</el-button>
+        <el-button @click="exchangeVisible=false">取消</el-button>
+      </el-form>
+    </el-dialog>
 
     <el-tabs v-model="activeName" tab-position="top" type="border-card" @tab-click="handleClick">
       <el-tab-pane label="存储选择" name="change">
@@ -218,7 +249,9 @@
                 trigger="hover">
               <div>
                 <el-link :underline="false">存储最大容量空间： {{ diskSize(storageinfo.max_storage_capacity) }}</el-link>
+                <br>
                 <el-link :underline="false">已经使用容量： {{ diskSize(storageinfo.used_number) }}</el-link>
+                <br>
                 <el-link :underline="false">当前可用容量：
                   {{ diskSize(storageinfo.max_storage_capacity - storageinfo.used_number) }}
                 </el-link>
@@ -265,6 +298,11 @@
 
           <el-form-item label="存储最大容量" label-width="110px" style="text-align: left">
             <el-tag>存储最大容量空间 {{ diskSize(storageinfo.max_storage_capacity) }}</el-tag>
+            <span v-if="percentage>=90 && use_storage_id===-1">
+              <el-tag style="margin: 0 10px" type="danger">容量即将不足，请立即扩容</el-tag> <el-button size="small"
+                                                                                            @click="exchangeFun">扩容</el-button>
+            </span>
+
           </el-form-item>
           <el-form-item label="已经使用容量" label-width="110px" style="text-align: left">
             <el-tag>存储已经使用容量空间 {{ diskSize(storageinfo.used_number) }}
@@ -663,6 +701,68 @@
 
         </el-table>
       </el-tab-pane>
+      <el-tab-pane label="默认存储扩容记录" name="exchange">
+        <div style="text-align: left;margin-bottom: 15px">
+          <el-tag>该记录为默认存储扩容记录，私有存储无需扩容</el-tag>
+        </div>
+        <el-table
+            v-loading="loading"
+            :data="storage_exchange_lists"
+            border
+            stripe
+            style="width: 100%">
+
+          <el-table-column
+              align="center"
+              label="兑换存储大小"
+              prop="storage_size"
+              width="140">
+            <template slot-scope="scope">
+              {{ diskSize(scope.row.storage_size) }}
+            </template>
+          </el-table-column>
+          <el-table-column
+              align="center"
+              label="消耗下载次数"
+              prop="download_times"
+              width="140">
+            <template slot-scope="scope">
+              {{ parseInt(scope.row.download_times / 100) }}
+            </template>
+          </el-table-column>
+          <el-table-column
+              align="center"
+              label="扩容日期"
+              prop="created_time">
+            <template slot-scope="scope">
+              {{ format_time(scope.row.created_time) }}
+            </template>
+          </el-table-column>
+          <el-table-column
+              align="center"
+              label="失效日期"
+              prop="expires_time">
+            <template slot-scope="scope">
+              {{ format_time(scope.row.expires_time) }}
+            </template>
+          </el-table-column>
+          <el-table-column
+              align="center"
+              label="状态"
+              prop="expires_time"
+              width="160">
+            <template slot-scope="scope">
+              <el-popover :content="expire_content(scope.row.is_expired)" placement="top-start" trigger="hover">
+                <div slot="reference">
+                  <el-tag v-if="scope.row.is_expired > 0">生效中</el-tag>
+                  <el-tag v-else type="warning">已失效</el-tag>
+                </div>
+              </el-popover>
+            </template>
+          </el-table-column>
+
+        </el-table>
+      </el-tab-pane>
       <el-tab-pane label="存储设置" name="setting" style="text-align: center">
         <div v-if="migrate_progress && migrate_progress.s_time" style="text-align: left">
           <el-card>
@@ -770,7 +870,7 @@
 </template>
 
 <script>
-import {cleanStorageData, configStorageData, getStorageinfo, shareStorageData} from "@/restful";
+import {cleanStorageData, configStorageData, exchangeStorageData, getStorageinfo, shareStorageData} from "@/restful";
 import {deepCopy, diskSize, getFormatDate, getUserInfoFun} from "@/utils";
 import {format_time} from "@/utils/base/utils";
 
@@ -790,9 +890,11 @@ export default {
       target_number: '',
       fstorage_lists: [],
       share_bill_lists: [],
+      storage_exchange_lists: [],
       Sdisabled: true,
       canshare: true,
       use_storage_id: 0,
+      exchange_number: 10,
       org_storage_id: 0,
       title: '',
       uidsearch: '',
@@ -801,6 +903,8 @@ export default {
       dialogstorageVisible: false,
       editstorageinfo: {},
       migrate_progress: {},
+      exchange_prices: {},
+      exchange_prices_key: "",
       selectlabel: "",
       storageinfo: {'used_number': 0, 'max_storage_capacity': 1},
       storage_list: [],
@@ -808,6 +912,7 @@ export default {
       disabled: true,
       isaddflag: false,
       shareVisible: false,
+      exchangeVisible: false,
       showshareSync: false,
       activeName: 'change',
       storage_info_lists: [],
@@ -819,8 +924,38 @@ export default {
     format_time,
     diskSize,
     getFormatDate,
-    cancelStorage() {
+    sureExchangeFun(exchange_number, exchange_prices_key) {
+      exchangeStorageData(res => {
+        if (res.code === 1000) {
+          this.$message.success("扩容成功")
+          this.exchangeVisible = false
 
+        } else {
+          this.$message.error("操作失败了，" + res.msg)
+        }
+      }, {"methods": 'POST', "data": {exchange_number, exchange_prices_key}})
+    },
+    exchangeFun() {
+      exchangeStorageData(res => {
+        if (res.code === 1000) {
+          this.exchangeVisible = true
+          this.exchange_prices = res.data
+          let pay_times = this.exchange_prices.pay_times
+          if (pay_times && pay_times.length > 0) {
+            this.exchange_prices_key = pay_times[0].name
+          }
+        } else {
+          this.$message.error("获取数据失败了，" + res.msg)
+        }
+      }, {"methods": 'PUT', "data": new Date()})
+    },
+    expire_content(is_expired) {
+      if (is_expired > 0) {
+        return `生效中，还有 ${is_expired} 天到期`
+      }
+      return `${-is_expired} 天前已失效`
+    },
+    cancelStorage() {
       this.$confirm("确定要解除迁移锁么，在未完成迁移状态下解除迁移锁之后，可能会导致数据异常?", '提示', {
         confirmButtonText: '确定',
         cancelButtonText: '取消',
@@ -1241,7 +1376,9 @@ export default {
         }, {"methods": 'GET', "data": {'act': 'storage_type'}});
       } else if (tabname === "share") {
         data.operatestatus = this.operatestatus
+        this.loading = true
         shareStorageData(res => {
+          this.loading = false
           if (res.code === 1000) {
             this.share_bill_lists = res.data
             this.pagination.total = res.count
@@ -1260,13 +1397,25 @@ export default {
           }
         }, {"methods": 'GET', "data": data})
 
+      } else if (tabname === 'exchange') {
+        this.loading = true
+        exchangeStorageData(res => {
+          if (res.code === 1000) {
+            this.storage_exchange_lists = res.data
+            this.pagination.total = res.count
+          } else {
+            this.$message.error("获取数据失败了，" + res.msg)
+          }
+          this.loading = false
+        }, {"methods": 'GET', "data": data})
+
       }
     },
   }, mounted() {
     getUserInfoFun(this);
     if (this.$route.params.act) {
       let activeName = this.$route.params.act;
-      let activeName_list = ["change", "edit", "add", "share", "setting"];
+      let activeName_list = ["change", "edit", "add", "share", "exchange", "setting"];
       for (let index in activeName_list) {
         if (activeName_list[index] === activeName) {
           this.activeName = activeName;
@@ -1294,6 +1443,14 @@ export default {
         p = 100
       }
       return p
+    },
+    exchangetimes() {
+      let pay_key = this.exchange_prices_key
+      if (pay_key) {
+        let m = pay_key.split('_')[1]
+        return this.exchange_number * parseInt(m) * this.exchange_prices.storage_every_month_price / this.exchange_prices.download_times
+      }
+      return 0
     }
   }
 }
diff --git a/fir_client/src/restful/index.js b/fir_client/src/restful/index.js
index b9d05f7..8e89c06 100644
--- a/fir_client/src/restful/index.js
+++ b/fir_client/src/restful/index.js
@@ -414,6 +414,18 @@ export function configStorageData(callBack, params) {
     );
 }
 
+/**用户存储空间兑换操作 */
+export function exchangeStorageData(callBack, params) {
+    getData(
+        params.methods,
+        USERSEVER + '/storage/exchange',
+        params.data,
+        data => {
+            callBack(data);
+        }
+    );
+}
+
 /**用户个人信息 */
 export function userinfos(callBack, params) {
     getData(
diff --git a/fir_ser/api/migrations/0001_initial.py b/fir_ser/api/migrations/0001_initial.py
index 92e4405..dee494e 100644
--- a/fir_ser/api/migrations/0001_initial.py
+++ b/fir_ser/api/migrations/0001_initial.py
@@ -254,6 +254,7 @@ class Migration(migrations.Migration):
                 ('name', models.CharField(max_length=128, unique=True, verbose_name='下载包唯一名称')),
                 ('title', models.CharField(max_length=128, verbose_name='下载包名称')),
                 ('description', models.CharField(max_length=128, verbose_name='下载包描述')),
+                ('price_type', models.SmallIntegerField(choices=[(1, '下载次数'), (2, '存储容量')], default=1)),
                 ('price', models.BigIntegerField(verbose_name='下载包价格，单位分')),
                 ('package_size', models.BigIntegerField(verbose_name='下载包次数')),
                 ('download_count_gift', models.IntegerField(default=0, verbose_name='赠送下载次数')),
diff --git a/fir_ser/api/migrations/0002_auto_20220215_2129.py b/fir_ser/api/migrations/0002_auto_20220215_2129.py
index cc40c30..e23feb3 100644
--- a/fir_ser/api/migrations/0002_auto_20220215_2129.py
+++ b/fir_ser/api/migrations/0002_auto_20220215_2129.py
@@ -10,6 +10,7 @@ price_info_list = [
         "title": "1k_times",
         "description": "1k_times",
         "price": 2500,
+        "price_type": 1,
         "package_size": 1000,
         "download_count_gift": 100,
         "is_enable": True,
@@ -19,6 +20,7 @@ price_info_list = [
         "title": "10k_times",
         "description": "10k_times",
         "price": 22000,
+        "price_type": 1,
         "package_size": 10000,
         "download_count_gift": 800,
         "is_enable": True,
@@ -28,10 +30,58 @@ price_info_list = [
         "title": "100k_times",
         "description": "100k_times",
         "price": 200000,
+        "price_type": 1,
         "package_size": 100000,
         "download_count_gift": 8000,
         "is_enable": True,
     },
+    {
+        "name": "storage_3_month",
+        "title": "三个月",
+        "description": "三个月",
+        "price": 3,
+        "price_type": 2,
+        "package_size": 3,
+        "download_count_gift": 0,
+        "is_enable": True,
+    }, {
+        "name": "storage_6_month",
+        "title": "半年",
+        "description": "半年",
+        "price": 6,
+        "price_type": 2,
+        "package_size": 6,
+        "download_count_gift": 0,
+        "is_enable": True,
+    }, {
+        "name": "storage_12_month",
+        "title": "一年",
+        "description": "一年",
+        "price": 12,
+        "price_type": 2,
+        "package_size": 12,
+        "download_count_gift": 0,
+        "is_enable": True,
+    }, {
+        "name": "storage_24_month",
+        "title": "两年",
+        "description": "两年",
+        "price": 24,
+        "price_type": 2,
+        "package_size": 24,
+        "download_count_gift": 0,
+        "is_enable": True,
+    }, {
+        "name": "storage_36_month",
+        "title": "三年",
+        "description": "三年",
+        "price": 36,
+        "price_type": 2,
+        "package_size": 36,
+        "download_count_gift": 0,
+        "is_enable": True,
+    }
+
 ]
 WEB_DOMAIN = DOMAINCONF.WEB_DOMAIN.split('//')[1]
 domain_cname_info_list = [
diff --git a/fir_ser/api/migrations/0006_auto_20220513_0843.py b/fir_ser/api/migrations/0006_auto_20220513_0843.py
index bedd2ae..5d4c86c 100644
--- a/fir_ser/api/migrations/0006_auto_20220513_0843.py
+++ b/fir_ser/api/migrations/0006_auto_20220513_0843.py
@@ -16,11 +16,6 @@ class Migration(migrations.Migration):
             name='max_storage_capacity',
             field=models.BigIntegerField(default=0, verbose_name='存储最大使用容量,单位btype'),
         ),
-        migrations.AddField(
-            model_name='userinfo',
-            name='storage_capacity',
-            field=models.BigIntegerField(default=0, verbose_name='存储容量，单位byte'),
-        ),
         migrations.AlterField(
             model_name='userinfo',
             name='download_times',
@@ -62,4 +57,22 @@ class Migration(migrations.Migration):
                 'verbose_name_plural': '私有存储共享',
             },
         ),
+        migrations.CreateModel(
+            name='StorageExchange',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('download_times', models.BigIntegerField(default=0, verbose_name='消耗下载次数')),
+                ('storage_size', models.BigIntegerField(default=0, verbose_name='兑换空间大小')),
+                ('expires_time', models.DateTimeField(verbose_name='失效时间')),
+                ('description', models.CharField(blank=True, default='', max_length=128, verbose_name='操作描述')),
+                ('remote_addr', models.GenericIPAddressField(verbose_name='远程IP地址')),
+                ('created_time', models.DateTimeField(auto_now_add=True, verbose_name='添加时间')),
+                ('user_id', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL,
+                                              verbose_name='用户ID')),
+            ],
+            options={
+                'verbose_name': '存储空间兑换信息',
+                'verbose_name_plural': '存储空间兑换信息',
+            },
+        ),
     ]
diff --git a/fir_ser/api/models.py b/fir_ser/api/models.py
index fe4271b..ad24399 100644
--- a/fir_ser/api/models.py
+++ b/fir_ser/api/models.py
@@ -40,7 +40,6 @@ class UserInfo(AbstractUser):
     memo = models.TextField('备注', blank=True, null=True, default=None, )
     date_joined = models.DateTimeField(auto_now_add=True, verbose_name="注册时间")
     download_times = models.PositiveBigIntegerField(default=0, verbose_name="可用下载点次数,需要用户充值")
-    storage_capacity = models.BigIntegerField(default=0, verbose_name="存储容量，单位byte")
     all_download_times = models.BigIntegerField(default=0, verbose_name="总共下载次数")
     default_domain_name = models.ForeignKey(to="DomainCnameInfo", verbose_name="默认下载页域名", on_delete=models.CASCADE)
     history_release_limit = models.IntegerField(default=10, verbose_name="app 历史记录版本", blank=True, null=True)
@@ -318,6 +317,8 @@ class Price(models.Model):
     name = models.CharField(max_length=128, unique=True, verbose_name="下载包唯一名称")
     title = models.CharField(max_length=128, verbose_name="下载包名称")
     description = models.CharField(max_length=128, verbose_name="下载包描述")
+    price_type_choices = ((1, '下载次数'), (2, '存储容量'))
+    price_type = models.SmallIntegerField(choices=price_type_choices, default=1)
     price = models.BigIntegerField(null=False, verbose_name="下载包价格，单位分")
     package_size = models.BigIntegerField(null=False, verbose_name="下载包次数")
     download_count_gift = models.IntegerField(default=0, null=False, verbose_name="赠送下载次数")
@@ -330,12 +331,13 @@ class Price(models.Model):
         unique_together = ('price', 'package_size')
 
     def save(self, *args, **kwargs):
-        if Price.objects.filter(is_enable=True).count() > 3:  # 最多3个启用的价格表
+        if Price.objects.filter(is_enable=True, price_type=1).count() > 3:  # 最多3个启用的价格表
             raise
         super(Price, self).save(*args, **kwargs)
 
     def __str__(self):
-        return "%s-%s-%s-%s" % (self.name, self.price, self.package_size, self.download_count_gift)
+        return "%s-%s-%s-%s-%s" % (
+            self.name, self.price, self.package_size, self.download_count_gift, self.get_price_type_display())
 
 
 class UserCertificationInfo(models.Model):
@@ -604,3 +606,20 @@ class StorageShareInfo(models.Model):
 
     def __str__(self):
         return f"{self.user_id}-{self.to_user_id}—{self.description}"
+
+
+class StorageExchange(models.Model):
+    user_id = models.ForeignKey(to=UserInfo, verbose_name="用户ID", on_delete=models.CASCADE)
+    download_times = models.BigIntegerField(verbose_name="消耗下载次数", default=0)
+    storage_size = models.BigIntegerField(verbose_name="兑换空间大小", default=0)
+    expires_time = models.DateTimeField(verbose_name="失效时间")
+    description = models.CharField(verbose_name="操作描述", max_length=128, default='', blank=True)
+    remote_addr = models.GenericIPAddressField(verbose_name="远程IP地址")
+    created_time = models.DateTimeField(auto_now_add=True, verbose_name="添加时间")
+
+    class Meta:
+        verbose_name = '存储空间兑换信息'
+        verbose_name_plural = "存储空间兑换信息"
+
+    def __str__(self):
+        return f"{self.user_id}—{self.description}"
diff --git a/fir_ser/api/urls.py b/fir_ser/api/urls.py
index 29846f6..848ce90 100644
--- a/fir_ser/api/urls.py
+++ b/fir_ser/api/urls.py
@@ -29,7 +29,7 @@ from api.views.notify import NotifyReceiverView, NotifyConfigView, NotifyInfoVie
 from api.views.order import PriceView, OrderView, PaySuccess, OrderSyncView
 from api.views.personalconfig import PersonalConfigView
 from api.views.report import ReportView
-from api.views.storage import StorageView, CleanStorageView, ShareStorageView, StorageConfigView
+from api.views.storage import StorageView, CleanStorageView, ShareStorageView, StorageConfigView, StorageExchangeView
 from api.views.thirdlogin import ValidWxChatToken, ThirdWxAccount
 from api.views.uploads import AppAnalyseView, UploadView
 
@@ -50,6 +50,7 @@ urlpatterns = [
     re_path("^storage/clean$", CleanStorageView.as_view()),
     re_path("^storage/share$", ShareStorageView.as_view()),
     re_path("^storage/config$", StorageConfigView.as_view()),
+    re_path("^storage/exchange$", StorageExchangeView.as_view()),
     re_path(r"^apps/(?P<app_id>\w+)", AppInfoView.as_view()),
     re_path(r"^download_password/(?P<app_id>\w+)", AppDownloadTokenView.as_view()),
     re_path(r"^appinfos/(?P<app_id>\w+)/(?P<act>\w+)", AppReleaseInfoView.as_view()),
diff --git a/fir_ser/api/utils/modelutils.py b/fir_ser/api/utils/modelutils.py
index dbee780..0dd3d4f 100644
--- a/fir_ser/api/utils/modelutils.py
+++ b/fir_ser/api/utils/modelutils.py
@@ -3,8 +3,7 @@
 # project: 4月 
 # author: NinEveN
 # date: 2021/4/16
-
-
+import datetime
 import logging
 import random
 from urllib.parse import urljoin
@@ -13,21 +12,24 @@ from django.db.models import Count
 from rest_framework.pagination import PageNumberPagination
 
 from api.models import AppReleaseInfo, UserDomainInfo, DomainCnameInfo, UserAdDisplayInfo, RemoteClientInfo, \
-    AppBundleIdBlackList, NotifyReceiver, WeChatInfo, AppDownloadToken, Apps, StorageShareInfo, UserInfo, AppStorage
+    AppBundleIdBlackList, NotifyReceiver, WeChatInfo, AppDownloadToken, Apps, StorageShareInfo, UserInfo, AppStorage, \
+    StorageExchange
 from common.base.baseutils import get_server_domain_from_request, get_user_default_domain_name, get_real_ip_address, \
     get_origin_domain_name
 from common.base.magic import MagicCacheData
-from common.core.sysconfig import Config
+from common.core.sysconfig import Config, UserConfig
 
 logger = logging.getLogger(__name__)
 
 
-def get_app_d_count_by_app_id(app_id, is_oss=False):
+def get_app_d_count_by_app_id(app_id, user_obj):
     d_count = 1
+    is_oss = user_obj.storage
     binary_size = AppReleaseInfo.objects.filter(is_master=True, app_id__app_id=app_id).values('binary_size').first()
     if binary_size and binary_size.get('binary_size', 0) > 0:
-        d_count += binary_size.get('binary_size') // 1024 // 1024 // 100
-    return d_count * (Config.APP_USE_BASE_DOWNLOAD_TIMES if not is_oss else Config.PRIVATE_OSS_DOWNLOAD_TIMES)
+        d_count += binary_size.get('binary_size') // Config.APP_FILE_CALCULATION_UNIT
+    return d_count * (UserConfig(user_obj).APP_USE_BASE_DOWNLOAD_TIMES if not is_oss else UserConfig(
+        user_obj).PRIVATE_OSS_DOWNLOAD_TIMES)
 
 
 def get_user_domain_name(obj, domain_type=1):
@@ -277,11 +279,18 @@ def get_user_storage_used(user_obj):
     return binary_size_sum
 
 
+def get_user_exchange_storage_capacity(user_obj):
+    obj = StorageExchange.objects.filter(user_id=user_obj, expires_time__gte=datetime.datetime.now()).order_by(
+        'storage_size').last()
+    if obj:
+        return obj.storage_size
+    return 0
+
+
 def get_user_storage_capacity(user_obj):
     storage_obj = user_obj.storage
     if not storage_obj:
-        user_storage_capacity = user_obj.storage_capacity
-        storage_capacity = user_storage_capacity if user_storage_capacity else Config.STORAGE_FREE_CAPACITY
+        storage_capacity = get_user_exchange_storage_capacity(user_obj) + Config.STORAGE_FREE_CAPACITY
     else:
         if storage_obj.user_id == user_obj:
             max_storage_capacity = storage_obj.max_storage_capacity
diff --git a/fir_ser/api/utils/serializer.py b/fir_ser/api/utils/serializer.py
index 839c2d4..218e434 100644
--- a/fir_ser/api/utils/serializer.py
+++ b/fir_ser/api/utils/serializer.py
@@ -1,3 +1,4 @@
+import datetime
 import logging
 import os
 
@@ -9,7 +10,7 @@ from api.utils.apputils import bytes2human
 from api.utils.modelutils import get_user_domain_name, get_app_domain_name, get_app_download_uri, get_user_storage_used
 from common.base.baseutils import get_choices_dict, WeixinLoginUid
 from common.cache.storage import AdPicShowCache
-from common.core.sysconfig import Config
+from common.core.sysconfig import Config, UserConfig
 from common.utils.caches import get_user_free_download_times, get_user_cert_auth_status
 from common.utils.storage import Storage
 from common.utils.token import make_token
@@ -61,9 +62,18 @@ def get_screenshots_from_self(self, obj, force_new=False):
 class UserInfoSerializer(serializers.ModelSerializer):
     class Meta:
         model = models.UserInfo
-        fields = ["username", "uid", "mobile", "job", "email", "domain_name", "role", "first_name",
+        fields = ["username", "uid", "mobile", "job", "email", "domain_name", "role", "first_name", "times_info",
                   'head_img', 'storage_active', 'supersign_active', 'free_download_times', 'download_times',
-                  'certification', 'qrcode_domain_name', 'storage_used', 'storage_capacity', 'storage_used_capacity']
+                  'certification', 'qrcode_domain_name', 'storage_used', 'storage_used_capacity']
+
+    times_info = serializers.SerializerMethodField()
+
+    def get_times_info(self, obj):
+        return {
+            'every_size': UserConfig(obj).APP_FILE_CALCULATION_UNIT,
+            'private_times': UserConfig(obj).PRIVATE_OSS_DOWNLOAD_TIMES,
+            'base_times': UserConfig(obj).APP_USE_BASE_DOWNLOAD_TIMES,
+        }
 
     storage_used_capacity = serializers.SerializerMethodField()
 
@@ -436,7 +446,7 @@ class StorageSerializer(serializers.ModelSerializer):
 class PriceSerializer(serializers.ModelSerializer):
     class Meta:
         model = models.Price
-        exclude = ["id"]
+        exclude = ["id", "price_type", "is_enable"]
 
 
 class OrdersSerializer(serializers.ModelSerializer):
@@ -590,3 +600,14 @@ class StorageShareSerializer(serializers.ModelSerializer):
 
     def get_cancel(self, obj):
         return self.context.get('user_obj').pk == obj.user_id.pk
+
+
+class StorageExchangeSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = models.StorageExchange
+        exclude = ["id", "remote_addr", "user_id"]
+
+    is_expired = serializers.SerializerMethodField()
+
+    def get_is_expired(self, obj):
+        return (obj.expires_time - datetime.datetime.now()).days
diff --git a/fir_ser/api/utils/utils.py b/fir_ser/api/utils/utils.py
index 2daf175..c4a18de 100644
--- a/fir_ser/api/utils/utils.py
+++ b/fir_ser/api/utils/utils.py
@@ -198,7 +198,7 @@ def migrating_storage_data(user_obj, new_storage_obj, clean_old_data):
             # 消费下载次数
             cache_default_data['migrate_num'] += 1
             task_cache.set_storage_cache(cache_default_data)
-            amount = get_app_d_count_by_app_id(app_release_obj.app_id.app_id, False)
+            amount = get_app_d_count_by_app_id(app_release_obj.app_id.app_id, user_obj)
             consume_user_download_times(user_obj.pk, app_release_obj.app_id, amount, auth_status)
         task_cache.del_storage_cache()
         return True
diff --git a/fir_ser/api/views/order.py b/fir_ser/api/views/order.py
index d80cbb6..9ab091e 100644
--- a/fir_ser/api/views/order.py
+++ b/fir_ser/api/views/order.py
@@ -61,7 +61,7 @@ class OrderView(APIView):
                     logger.info(f"{request.user} 下单成功 {res.dict}")
                     return Response(res.dict)
 
-            price_obj = Price.objects.filter(name=price_id).first()
+            price_obj = Price.objects.filter(name=price_id, price_type=1).first()
             if price_obj:
                 try:
                     order_number = get_order_num()
@@ -154,7 +154,8 @@ class PriceView(APIView):
 
     def get(self, request):
         res = BaseResponse()
-        price_obj_lists = Price.objects.filter(is_enable=True).all().order_by("updated_time").order_by("price")
+        price_obj_lists = Price.objects.filter(is_enable=True, price_type=1).all().order_by("updated_time").order_by(
+            "price")
         res.data = PriceSerializer(price_obj_lists, many=True).data
         res.pay_choices = get_enable_pay_choices()
         return Response(res.dict)
diff --git a/fir_ser/api/views/storage.py b/fir_ser/api/views/storage.py
index 2576e56..0f21410 100644
--- a/fir_ser/api/views/storage.py
+++ b/fir_ser/api/views/storage.py
@@ -3,7 +3,6 @@
 # project: 3月
 # author: liuyu
 # date: 2020/3/4
-
 import logging
 
 from django.db.models import Q
@@ -11,19 +10,19 @@ from rest_framework.response import Response
 from rest_framework.views import APIView
 
 from api.base_views import app_delete
-from api.models import AppStorage, Apps, StorageShareInfo, UserInfo
+from api.models import AppStorage, Apps, StorageShareInfo, UserInfo, StorageExchange, Price
 from api.tasks import migrate_storage_job
 from api.utils.apputils import clean_history_apps
 from api.utils.modelutils import PageNumber, get_user_storage_capacity, get_user_storage_used
 from api.utils.response import BaseResponse
-from api.utils.serializer import StorageSerializer, StorageShareSerializer
+from api.utils.serializer import StorageSerializer, StorageShareSerializer, StorageExchangeSerializer, PriceSerializer
 from api.utils.utils import upload_oss_default_head_img
 from common.base.baseutils import get_choices_dict, get_choices_name_from_key, get_real_ip_address
 from common.cache.state import MigrateStorageState
 from common.cache.storage import TaskProgressCache
 from common.core.auth import ExpiringTokenAuthentication, StoragePermission
 from common.core.sysconfig import Config
-from common.utils.caches import del_cache_storage
+from common.utils.caches import del_cache_storage, add_user_storage_exchange
 
 logger = logging.getLogger(__name__)
 
@@ -93,10 +92,9 @@ class StorageView(APIView):
             return Response(res.dict)
         if pk:
             if pk == '-1':
-                storage_capacity = request.user.storage_capacity
                 default_storage = {
                     'id': -1,
-                    'max_storage_capacity': storage_capacity if storage_capacity != 0 else Config.STORAGE_FREE_CAPACITY,
+                    'max_storage_capacity': get_user_storage_capacity(request.user),
                     'used_number': get_user_storage_used(request.user)
                 }
                 res.data = [default_storage]
@@ -305,10 +303,10 @@ class ShareStorageView(APIView):
         except Exception as e:
             logger.error(f'status {status} check failed  Exception:{e}')
 
-        app_page_serializer = page_obj.paginate_queryset(queryset=share_list.order_by("-created_time"),
-                                                         request=request,
-                                                         view=self)
-        app_serializer = StorageShareSerializer(app_page_serializer, many=True, context={'user_obj': request.user})
+        page_serializer = page_obj.paginate_queryset(queryset=share_list.order_by("-created_time"),
+                                                     request=request,
+                                                     view=self)
+        app_serializer = StorageShareSerializer(page_serializer, many=True, context={'user_obj': request.user})
         res.data = app_serializer.data
         res.count = share_list.count()
         res.status_choices = get_choices_dict(StorageShareInfo.status_choices)
@@ -461,3 +459,49 @@ class StorageConfigView(APIView):
         if migrate_obj.get_state() == request.data.get('storage_status'):
             migrate_obj.del_state()
         return Response(res.dict)
+
+
+class StorageExchangeView(APIView):
+    authentication_classes = [ExpiringTokenAuthentication, ]
+    permission_classes = [StoragePermission, ]
+
+    def get(self, request):
+        res = BaseResponse()
+        storage_exchange_queryset = StorageExchange.objects.filter(user_id=request.user)
+        page_obj = PageNumber()
+        page_serializer = page_obj.paginate_queryset(queryset=storage_exchange_queryset.order_by("-created_time"),
+                                                     request=request,
+                                                     view=self)
+        app_serializer = StorageExchangeSerializer(page_serializer, many=True)
+        res.data = app_serializer.data
+        res.count = storage_exchange_queryset.count()
+        return Response(res.dict)
+
+    def post(self, request):
+        res = BaseResponse()
+        exchange_number = request.data.get('exchange_number')
+        exchange_prices_key = request.data.get('exchange_prices_key')
+        if exchange_number and exchange_prices_key:
+            price_obj = Price.objects.filter(is_enable=True, price_type=2, name=exchange_prices_key).first()
+            if price_obj:
+                exchange_month = price_obj.price
+                if not add_user_storage_exchange(request.user, exchange_number, exchange_month,
+                                                 get_real_ip_address(request)):
+                    res.code = 1002
+                    res.msg = '扩容失败，账号可用下载次数不足'
+            else:
+                res.code = 1001
+                res.msg = '价格异常'
+
+        return Response(res.dict)
+
+    def put(self, request):
+        res = BaseResponse()
+        price_obj_lists = Price.objects.filter(is_enable=True, price_type=2).all().order_by("updated_time").order_by(
+            "price")
+        res.data = {
+            'pay_times': PriceSerializer(price_obj_lists, many=True).data,
+            'storage_every_month_price': Config.OSS_EXCHANGE_DOWNLOAD_TIMES,
+            'download_times': Config.APP_USE_BASE_DOWNLOAD_TIMES,
+        }
+        return Response(res.dict)
diff --git a/fir_ser/common/core/sysconfig.py b/fir_ser/common/core/sysconfig.py
index 1eb77f5..c3d3adc 100644
--- a/fir_ser/common/core/sysconfig.py
+++ b/fir_ser/common/core/sysconfig.py
@@ -319,6 +319,14 @@ class UserDownloadTimesCache(ConfigCacheBase):
     def PRIVATE_OSS_DOWNLOAD_TIMES(self):
         return super().get_value('PRIVATE_OSS_DOWNLOAD_TIMES', DOWNLOADTIMESCONF.PRIVATE_OSS_DOWNLOAD_TIMES)
 
+    @property
+    def APP_FILE_CALCULATION_UNIT(self):
+        return super().get_value('APP_FILE_CALCULATION_UNIT', DOWNLOADTIMESCONF.APP_FILE_CALCULATION_UNIT)
+
+    @property
+    def OSS_EXCHANGE_DOWNLOAD_TIMES(self):
+        return super().get_value('OSS_EXCHANGE_DOWNLOAD_TIMES', DOWNLOADTIMESCONF.OSS_EXCHANGE_DOWNLOAD_TIMES)
+
 
 class OssStorageConfCache(ConfigCacheBase):
     def __init__(self, *args, **kwargs):
diff --git a/fir_ser/common/utils/caches.py b/fir_ser/common/utils/caches.py
index e652a9b..c8b1238 100644
--- a/fir_ser/common/utils/caches.py
+++ b/fir_ser/common/utils/caches.py
@@ -3,7 +3,7 @@
 # project: 4月
 # author: liuyu
 # date: 2020/4/7
-
+import datetime
 import logging
 import time
 
@@ -11,7 +11,7 @@ from django.core.cache import cache
 from django.db.models import F
 from django.utils import timezone
 
-from api.models import Apps, UserInfo, UserCertificationInfo, Order
+from api.models import Apps, UserInfo, UserCertificationInfo, Order, StorageExchange
 from api.utils.modelutils import get_app_d_count_by_app_id, get_app_domain_name, get_user_domain_name
 from common.base.baseutils import get_order_num
 from common.cache.invalid import invalid_app_cache, invalid_short_cache, invalid_app_download_times_cache, \
@@ -228,14 +228,11 @@ def get_user_cert_auth_status(user_id):
 
 
 def check_user_has_all_download_times(app_obj, user_obj):
-    if user_obj:
-        user_id = user_obj.pk
-        storage = user_obj.storage
-    else:
-        user_id = app_obj.user_id_id
-        storage = app_obj.user_id.storage
+    if not user_obj:
+        user_obj = app_obj.user_id
+    user_id = user_obj.pk
     auth_status = get_user_cert_auth_status(user_id)
-    d_count = get_app_d_count_by_app_id(app_obj.app_id, storage)
+    d_count = get_app_d_count_by_app_id(app_obj.app_id, user_obj)
     a = get_user_free_download_times(user_id, auth_status=auth_status)
     b = d_count
     c = check_user_can_download(user_id)
@@ -244,10 +241,10 @@ def check_user_has_all_download_times(app_obj, user_obj):
 
 
 def consume_user_download_times_by_app_obj(app_obj):
-    user_id = app_obj.user_id_id
-    auth_status = get_user_cert_auth_status(user_id)
-    amount = get_app_d_count_by_app_id(app_obj.app_id, False)
-    if consume_user_download_times(user_id, app_obj.app_id, int(amount * (Config.SIGN_EXTRA_MULTIPLE - 1)),
+    user_obj = app_obj.user_id
+    auth_status = get_user_cert_auth_status(user_obj.pk)
+    amount = get_app_d_count_by_app_id(app_obj.app_id, user_obj)
+    if consume_user_download_times(user_obj.pk, app_obj.app_id, int(amount * (Config.SIGN_EXTRA_MULTIPLE - 1)),
                                    auth_status):
         return False
     return True
@@ -398,3 +395,24 @@ def get_and_clean_udid_cache_queue(prefix_key):
             data = []
         cache_obj.del_storage_cache()
         return data
+
+
+def add_user_storage_exchange(user_obj, exchange_number, exchange_month, remote_addr):
+    with cache.lock("%s_%s" % ('user_storage_order_', user_obj.uid), timeout=10, blocking_timeout=6):
+        try:
+            download_times = exchange_number * exchange_month * Config.OSS_EXCHANGE_DOWNLOAD_TIMES
+            expires_time = datetime.datetime.now() + datetime.timedelta(days=30 * exchange_month)
+            description = f'扩容成功，消费下载点数{download_times} 兑换了 {exchange_number} GB存储空间'
+            obj = StorageExchange.objects.create(user_id=user_obj, download_times=download_times,
+                                                 storage_size=exchange_number * 1024 * 1024 * 1024,
+                                                 expires_time=expires_time, remote_addr=remote_addr,
+                                                 description=description)
+
+            if add_user_download_times(user_obj.pk, -download_times):
+                logger.info(f"{user_obj} 存储扩容成功  msg：{description}")
+                return True
+            else:
+                obj.delete()
+        except Exception as e:
+            logger.error(f"{user_obj} download_times less then 0. Exception:{e}")
+        return False
diff --git a/fir_ser/common/utils/download.py b/fir_ser/common/utils/download.py
index 778bb7e..2f90333 100644
--- a/fir_ser/common/utils/download.py
+++ b/fir_ser/common/utils/download.py
@@ -71,7 +71,8 @@ def get_app_instance_by_cache(app_id, limit):
                                                                   'issupersign', 'user_id__storage',
                                                                   'user_id__certification__status').first()
         if app_obj_cache:
-            app_obj_cache['d_count'] = get_app_d_count_by_app_id(app_id, app_obj_cache.get('user_id__storage', False))
+            user_obj = UserInfo.objects.filter(pk=app_obj_cache.get('user_id')).first()
+            app_obj_cache['d_count'] = get_app_d_count_by_app_id(app_id, user_obj)
             app_instance_cache.set_storage_cache(app_obj_cache, limit)
     if not app_obj_cache:
         return False, '应用不存在'
diff --git a/fir_ser/config.py b/fir_ser/config.py
index 7ee9d34..89f62e7 100644
--- a/fir_ser/config.py
+++ b/fir_ser/config.py
@@ -392,7 +392,12 @@ bIX1aWjPxirQX9mzaL3oEQI=
 class DOWNLOADTIMESCONF(object):
     SIGN_EXTRA_MULTIPLE = 2  # 超级签名消耗额外倍数，超级签名需要占用的服务大量资源
 
+    # 具体计算方式查看该函数 get_app_d_count_by_app_id
     APP_USE_BASE_DOWNLOAD_TIMES = 100  # 单个应用下载消费点数
+    APP_FILE_CALCULATION_UNIT = 1024 * 1024 * 100  # 应用计算次数，表示应用大小计算点数
+
+    OSS_EXCHANGE_DOWNLOAD_TIMES = "{% widthratio 5 1 {{APP_USE_BASE_DOWNLOAD_TIMES}}  %}"  # 默认 1G 一个月 500下载点数
+
     PRIVATE_OSS_DOWNLOAD_TIMES = 4  # 私有存储单个应用下载消费点数
 
     USER_FREE_DOWNLOAD_TIMES = "{% widthratio 5 1 {{APP_USE_BASE_DOWNLOAD_TIMES}}  %}"  # 用户每日免费下载点数