diff --git a/fir_ser/api/migrations/0011_auto_20210125_1137.py b/fir_ser/api/migrations/0011_auto_20210125_1137.py
new file mode 100644
index 0000000..e5d967d
--- /dev/null
+++ b/fir_ser/api/migrations/0011_auto_20210125_1137.py
@@ -0,0 +1,22 @@
+# Generated by Django 3.0.3 on 2021-01-25 11:37
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('api', '0010_userinfo_api_token'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='udidsyncdeveloper',
+            name='created_time',
+        ),
+        migrations.AddField(
+            model_name='udidsyncdeveloper',
+            name='platform',
+            field=models.SmallIntegerField(choices=[(0, 'app developer'), (1, 'fly分发')], default=0, verbose_name='udid所在平台'),
+        ),
+    ]
diff --git a/fir_ser/api/models.py b/fir_ser/api/models.py
index 730bf44..31dc3ad 100644
--- a/fir_ser/api/models.py
+++ b/fir_ser/api/models.py
@@ -270,7 +270,9 @@ class UDIDsyncDeveloper(models.Model):
     product = models.CharField(max_length=64, verbose_name="产品", blank=True, null=True, )
     serial = models.CharField(max_length=64, verbose_name="序列号", blank=True, null=True, )
     version = models.CharField(max_length=64, verbose_name="型号", blank=True, null=True, )
-    created_time = models.DateTimeField(auto_now_add=True, verbose_name="创建时间")
+    created_time = models.DateTimeField(auto_now_add=True, verbose_name="创建时间"),
+    platform_choices = ((0, 'fly分发'), (1, 'app developer'),)
+    platform = models.SmallIntegerField(choices=platform_choices, default=0, verbose_name="udid所在平台")
 
     class Meta:
         verbose_name = 'iOS开发平台同步设备信息'
diff --git a/fir_ser/api/utils/app/supersignutils.py b/fir_ser/api/utils/app/supersignutils.py
index a5d4a0b..f9bfbfe 100644
--- a/fir_ser/api/utils/app/supersignutils.py
+++ b/fir_ser/api/utils/app/supersignutils.py
@@ -483,6 +483,7 @@ class IosUtils(object):
                     "get_device_from_developer developer_obj:%s user_obj:%s delete file failed Exception:%s" % (
                         developer_obj, user_obj, e))
 
+            UDIDsyncDeveloper.objects.filter(developerid=developer_obj, platform=1).delete()
             for devicestr in devices_info.split(">"):
                 formatdevice = re.findall(r'.*Device id="(.*)",.*name="(.*)",.*udid="(.*?)",.*model=(.*),.*', devicestr)
                 if formatdevice:
@@ -491,6 +492,7 @@ class IosUtils(object):
                         "product": formatdevice[0][1],
                         "udid": formatdevice[0][2],
                         "version": formatdevice[0][3],
+                        "platform": 1
                     }
                     app_udid_obj = UDIDsyncDeveloper.objects.filter(developerid=developer_obj, udid=device.get("udid"))
                     if app_udid_obj: