diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 8c0318cae..39ddc4987 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -46,7 +46,7 @@
             android:name=".help.permission.PermissionActivity"
             android:theme="@style/Activity.Permission" />
         <activity
-            android:name=".ui.book.source.edit.SourceEditActivity"
+            android:name=".ui.book.source.edit.BookSourceEditActivity"
             android:configChanges="locale|keyboardHidden|orientation|screenSize|smallestScreenSize|screenLayout"
             android:launchMode="singleTask"
             android:windowSoftInputMode="adjustResize|stateHidden" />
@@ -63,7 +63,7 @@
         <activity android:name=".ui.about.DonateActivity" />
         <activity android:name=".ui.book.info.BookInfoActivity" />
         <activity android:name="io.legado.app.ui.book.info.edit.BookInfoEditActivity" />
-        <activity android:name=".ui.book.source.debug.SourceDebugActivity" />
+        <activity android:name=".ui.book.source.debug.BookSourceDebugActivity" />
         <activity android:name=".ui.book.source.manage.BookSourceActivity" />
         <activity android:name=".ui.chapterlist.ChapterListActivity" />
         <activity android:name=".ui.rss.read.ReadRssActivity" />
diff --git a/app/src/main/java/io/legado/app/data/dao/BookSourceDao.kt b/app/src/main/java/io/legado/app/data/dao/BookSourceDao.kt
index 334bb7a82..0c8e4d65e 100644
--- a/app/src/main/java/io/legado/app/data/dao/BookSourceDao.kt
+++ b/app/src/main/java/io/legado/app/data/dao/BookSourceDao.kt
@@ -67,4 +67,7 @@ interface BookSourceDao {
 
     @get:Query("select min(customOrder) from book_sources")
     val minOrder: Int
+
+    @get:Query("select max(customOrder) from book_sources")
+    val maxOrder: Int
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/data/dao/RssSourceDao.kt b/app/src/main/java/io/legado/app/data/dao/RssSourceDao.kt
index b33f82b60..d30b861da 100644
--- a/app/src/main/java/io/legado/app/data/dao/RssSourceDao.kt
+++ b/app/src/main/java/io/legado/app/data/dao/RssSourceDao.kt
@@ -34,6 +34,9 @@ interface RssSourceDao {
     @get:Query("select min(customOrder) from rssSources")
     val minOrder: Int
 
+    @get:Query("select max(customOrder) from rssSources")
+    val maxOrder: Int
+
     @Query("delete from rssSources where sourceUrl in (:sourceUrls)")
     fun delSection(vararg sourceUrls: String)
 
diff --git a/app/src/main/java/io/legado/app/ui/book/info/BookInfoActivity.kt b/app/src/main/java/io/legado/app/ui/book/info/BookInfoActivity.kt
index 3f78488de..b9bb67838 100644
--- a/app/src/main/java/io/legado/app/ui/book/info/BookInfoActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/info/BookInfoActivity.kt
@@ -14,7 +14,7 @@ import io.legado.app.help.ImageLoader
 import io.legado.app.lib.theme.ATH
 import io.legado.app.ui.book.info.edit.BookInfoEditActivity
 import io.legado.app.ui.book.read.ReadBookActivity
-import io.legado.app.ui.book.source.edit.SourceEditActivity
+import io.legado.app.ui.book.source.edit.BookSourceEditActivity
 import io.legado.app.ui.changesource.ChangeSourceDialog
 import io.legado.app.utils.getCompatDrawable
 import io.legado.app.utils.getViewModel
@@ -190,7 +190,7 @@ class BookInfoActivity : VMBaseActivity<BookInfoViewModel>(R.layout.activity_boo
         }
         tv_origin.onClick {
             viewModel.bookData.value?.let {
-                startActivity<SourceEditActivity>(Pair("data", it.origin))
+                startActivity<BookSourceEditActivity>(Pair("data", it.origin))
             }
         }
         tv_change_source.onClick {
diff --git a/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt b/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
index 3b2400e56..c763ae746 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
@@ -32,7 +32,7 @@ import io.legado.app.service.BaseReadAloudService
 import io.legado.app.ui.book.read.config.*
 import io.legado.app.ui.book.read.config.BgTextConfigDialog.Companion.BG_COLOR
 import io.legado.app.ui.book.read.config.BgTextConfigDialog.Companion.TEXT_COLOR
-import io.legado.app.ui.book.source.edit.SourceEditActivity
+import io.legado.app.ui.book.source.edit.BookSourceEditActivity
 import io.legado.app.ui.changesource.ChangeSourceDialog
 import io.legado.app.ui.chapterlist.ChapterListActivity
 import io.legado.app.ui.replacerule.ReplaceRuleActivity
@@ -114,7 +114,7 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_boo
     private fun initView() {
         tv_chapter_name.onClick {
             viewModel.webBook?.let {
-                startActivityForResult<SourceEditActivity>(
+                startActivityForResult<BookSourceEditActivity>(
                     requestCodeEditSource,
                     Pair("data", it.bookSource.bookSourceUrl)
                 )
diff --git a/app/src/main/java/io/legado/app/ui/book/source/debug/SourceDebugActivity.kt b/app/src/main/java/io/legado/app/ui/book/source/debug/BookSourceDebugActivity.kt
similarity index 90%
rename from app/src/main/java/io/legado/app/ui/book/source/debug/SourceDebugActivity.kt
rename to app/src/main/java/io/legado/app/ui/book/source/debug/BookSourceDebugActivity.kt
index de2ef20e7..dafeaa218 100644
--- a/app/src/main/java/io/legado/app/ui/book/source/debug/SourceDebugActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/source/debug/BookSourceDebugActivity.kt
@@ -18,12 +18,13 @@ import kotlinx.coroutines.launch
 import org.jetbrains.anko.startActivityForResult
 import org.jetbrains.anko.toast
 
-class SourceDebugActivity : VMBaseActivity<SourceDebugModel>(R.layout.activity_source_debug) {
+class BookSourceDebugActivity :
+    VMBaseActivity<BookSourceDebugModel>(R.layout.activity_source_debug) {
 
-    override val viewModel: SourceDebugModel
-        get() = getViewModel(SourceDebugModel::class.java)
+    override val viewModel: BookSourceDebugModel
+        get() = getViewModel(BookSourceDebugModel::class.java)
 
-    private lateinit var adapter: SourceDebugAdapter
+    private lateinit var adapter: BookSourceDebugAdapter
     private val qrRequestCode = 101
 
     override fun onActivityCreated(savedInstanceState: Bundle?) {
@@ -42,7 +43,7 @@ class SourceDebugActivity : VMBaseActivity<SourceDebugModel>(R.layout.activity_s
 
     private fun initRecyclerView() {
         ATH.applyEdgeEffectColor(recycler_view)
-        adapter = SourceDebugAdapter(this)
+        adapter = BookSourceDebugAdapter(this)
         recycler_view.layoutManager = LinearLayoutManager(this)
         recycler_view.adapter = adapter
         rotate_loading.loadingColor = accentColor
diff --git a/app/src/main/java/io/legado/app/ui/book/source/debug/SourceDebugAdapter.kt b/app/src/main/java/io/legado/app/ui/book/source/debug/BookSourceDebugAdapter.kt
similarity index 90%
rename from app/src/main/java/io/legado/app/ui/book/source/debug/SourceDebugAdapter.kt
rename to app/src/main/java/io/legado/app/ui/book/source/debug/BookSourceDebugAdapter.kt
index 94147a5f1..2ec4e9518 100644
--- a/app/src/main/java/io/legado/app/ui/book/source/debug/SourceDebugAdapter.kt
+++ b/app/src/main/java/io/legado/app/ui/book/source/debug/BookSourceDebugAdapter.kt
@@ -6,7 +6,7 @@ import io.legado.app.base.adapter.ItemViewHolder
 import io.legado.app.base.adapter.SimpleRecyclerAdapter
 import kotlinx.android.synthetic.main.item_log.view.*
 
-class SourceDebugAdapter(context: Context) :
+class BookSourceDebugAdapter(context: Context) :
     SimpleRecyclerAdapter<String>(context, R.layout.item_log) {
     override fun convert(holder: ItemViewHolder, item: String, payloads: MutableList<Any>) {
         holder.itemView.apply {
diff --git a/app/src/main/java/io/legado/app/ui/book/source/debug/SourceDebugModel.kt b/app/src/main/java/io/legado/app/ui/book/source/debug/BookSourceDebugModel.kt
similarity index 91%
rename from app/src/main/java/io/legado/app/ui/book/source/debug/SourceDebugModel.kt
rename to app/src/main/java/io/legado/app/ui/book/source/debug/BookSourceDebugModel.kt
index a17565820..ced985aa9 100644
--- a/app/src/main/java/io/legado/app/ui/book/source/debug/SourceDebugModel.kt
+++ b/app/src/main/java/io/legado/app/ui/book/source/debug/BookSourceDebugModel.kt
@@ -6,7 +6,8 @@ import io.legado.app.base.BaseViewModel
 import io.legado.app.model.WebBook
 import io.legado.app.model.webbook.SourceDebug
 
-class SourceDebugModel(application: Application) : BaseViewModel(application), SourceDebug.Callback {
+class BookSourceDebugModel(application: Application) : BaseViewModel(application),
+    SourceDebug.Callback {
 
     private var webBook: WebBook? = null
 
diff --git a/app/src/main/java/io/legado/app/ui/book/source/edit/SourceEditActivity.kt b/app/src/main/java/io/legado/app/ui/book/source/edit/BookSourceEditActivity.kt
similarity index 95%
rename from app/src/main/java/io/legado/app/ui/book/source/edit/SourceEditActivity.kt
rename to app/src/main/java/io/legado/app/ui/book/source/edit/BookSourceEditActivity.kt
index 4eb28dcea..e2fdd270f 100644
--- a/app/src/main/java/io/legado/app/ui/book/source/edit/SourceEditActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/source/edit/BookSourceEditActivity.kt
@@ -22,7 +22,7 @@ import io.legado.app.data.entities.BookSource
 import io.legado.app.data.entities.EditEntity
 import io.legado.app.data.entities.rule.*
 import io.legado.app.lib.theme.ATH
-import io.legado.app.ui.book.source.debug.SourceDebugActivity
+import io.legado.app.ui.book.source.debug.BookSourceDebugActivity
 import io.legado.app.ui.widget.KeyboardToolPop
 import io.legado.app.utils.GSON
 import io.legado.app.utils.getViewModel
@@ -32,13 +32,13 @@ import org.jetbrains.anko.startActivity
 import org.jetbrains.anko.toast
 import kotlin.math.abs
 
-class SourceEditActivity :
-    VMBaseActivity<SourceEditViewModel>(R.layout.activity_book_source_edit, false),
+class BookSourceEditActivity :
+    VMBaseActivity<BookSourceEditViewModel>(R.layout.activity_book_source_edit, false),
     KeyboardToolPop.CallBack {
-    override val viewModel: SourceEditViewModel
-        get() = getViewModel(SourceEditViewModel::class.java)
+    override val viewModel: BookSourceEditViewModel
+        get() = getViewModel(BookSourceEditViewModel::class.java)
 
-    private val adapter = SourceEditAdapter()
+    private val adapter = BookSourceEditAdapter()
     private val sourceEntities: ArrayList<EditEntity> = ArrayList()
     private val searchEntities: ArrayList<EditEntity> = ArrayList()
     private val findEntities: ArrayList<EditEntity> = ArrayList()
@@ -55,11 +55,8 @@ class SourceEditActivity :
             upRecyclerView(it)
         })
         if (viewModel.sourceLiveData.value == null) {
-            val sourceID = intent.getStringExtra("data")
-            if (sourceID == null) {
-                upRecyclerView(null)
-            } else {
-                sourceID.let { viewModel.setBookSource(sourceID) }
+            intent.getStringExtra("data")?.let {
+                viewModel.setBookSource(it)
             }
         } else {
             upRecyclerView(viewModel.sourceLiveData.value)
@@ -86,7 +83,7 @@ class SourceEditActivity :
             R.id.menu_debug_source -> {
                 getSource()?.let {
                     viewModel.save(it) {
-                        startActivity<SourceDebugActivity>(Pair("key", it.bookSourceUrl))
+                        startActivity<BookSourceDebugActivity>(Pair("key", it.bookSourceUrl))
                     }
                 }
             }
@@ -120,6 +117,7 @@ class SourceEditActivity :
                 setEditEntities(tab?.position)
             }
         })
+        upRecyclerView(null)
     }
 
     private fun setEditEntities(tabPosition: Int?) {
@@ -358,7 +356,7 @@ class SourceEditActivity :
             val rect = Rect()
             // 获取当前页面窗口的显示范围
             window.decorView.getWindowVisibleDisplayFrame(rect)
-            val screenHeight = this@SourceEditActivity.displayMetrics.heightPixels
+            val screenHeight = this@BookSourceEditActivity.displayMetrics.heightPixels
             val keyboardHeight = screenHeight - rect.bottom // 输入法的高度
             val preShowing = mIsSoftKeyBoardShowing
             if (abs(keyboardHeight) > screenHeight / 5) {
diff --git a/app/src/main/java/io/legado/app/ui/book/source/edit/SourceEditAdapter.kt b/app/src/main/java/io/legado/app/ui/book/source/edit/BookSourceEditAdapter.kt
similarity index 96%
rename from app/src/main/java/io/legado/app/ui/book/source/edit/SourceEditAdapter.kt
rename to app/src/main/java/io/legado/app/ui/book/source/edit/BookSourceEditAdapter.kt
index 434f2071a..37939e803 100644
--- a/app/src/main/java/io/legado/app/ui/book/source/edit/SourceEditAdapter.kt
+++ b/app/src/main/java/io/legado/app/ui/book/source/edit/BookSourceEditAdapter.kt
@@ -10,7 +10,7 @@ import io.legado.app.R
 import io.legado.app.data.entities.EditEntity
 import kotlinx.android.synthetic.main.item_source_edit.view.*
 
-class SourceEditAdapter : RecyclerView.Adapter<SourceEditAdapter.MyViewHolder>() {
+class BookSourceEditAdapter : RecyclerView.Adapter<BookSourceEditAdapter.MyViewHolder>() {
 
     var editEntities: ArrayList<EditEntity> = ArrayList()
         set(value) {
diff --git a/app/src/main/java/io/legado/app/ui/book/source/edit/SourceEditViewModel.kt b/app/src/main/java/io/legado/app/ui/book/source/edit/BookSourceEditViewModel.kt
similarity index 83%
rename from app/src/main/java/io/legado/app/ui/book/source/edit/SourceEditViewModel.kt
rename to app/src/main/java/io/legado/app/ui/book/source/edit/BookSourceEditViewModel.kt
index c3af29a6a..8bff89145 100644
--- a/app/src/main/java/io/legado/app/ui/book/source/edit/SourceEditViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/book/source/edit/BookSourceEditViewModel.kt
@@ -9,7 +9,7 @@ import io.legado.app.base.BaseViewModel
 import io.legado.app.data.entities.BookSource
 import io.legado.app.help.storage.OldRule
 
-class SourceEditViewModel(application: Application) : BaseViewModel(application) {
+class BookSourceEditViewModel(application: Application) : BaseViewModel(application) {
 
     val sourceLiveData: MutableLiveData<BookSource> = MutableLiveData()
 
@@ -17,14 +17,17 @@ class SourceEditViewModel(application: Application) : BaseViewModel(application)
         execute {
             App.db.bookSourceDao().getBookSource(key)?.let {
                 sourceLiveData.postValue(it)
-            } ?: sourceLiveData.postValue(BookSource())
+            }
         }
     }
 
     fun save(bookSource: BookSource, finally: (() -> Unit)? = null) {
         execute {
-            if (bookSource.customOrder == 0) {
-                bookSource.customOrder = App.db.bookSourceDao().allCount()
+            sourceLiveData.value?.let {
+                bookSource.customOrder = it.customOrder
+                App.db.bookSourceDao().delete(it)
+            } ?: let {
+                bookSource.customOrder = App.db.bookSourceDao().maxOrder + 1
             }
             App.db.bookSourceDao().insert(bookSource)
         }.onFinally {
diff --git a/app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceActivity.kt b/app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceActivity.kt
index 258e8b52d..ecdb0ad7b 100644
--- a/app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceActivity.kt
@@ -28,7 +28,7 @@ import io.legado.app.lib.theme.ATH
 import io.legado.app.lib.theme.primaryTextColor
 import io.legado.app.lib.theme.view.ATEAutoCompleteTextView
 import io.legado.app.service.CheckSourceService
-import io.legado.app.ui.book.source.edit.SourceEditActivity
+import io.legado.app.ui.book.source.edit.BookSourceEditActivity
 import io.legado.app.ui.qrcode.QrCodeActivity
 import io.legado.app.utils.ACache
 import io.legado.app.utils.applyTint
@@ -76,7 +76,7 @@ class BookSourceActivity : VMBaseActivity<BookSourceViewModel>(R.layout.activity
     override fun onCompatOptionsItemSelected(item: MenuItem): Boolean {
         when (item.itemId) {
             R.id.menu_add_book_source -> {
-                this.startActivity<SourceEditActivity>()
+                this.startActivity<BookSourceEditActivity>()
             }
             R.id.menu_import_book_source_qr -> {
                 this.startActivityForResult<QrCodeActivity>(qrRequestCode)
@@ -212,7 +212,7 @@ class BookSourceActivity : VMBaseActivity<BookSourceViewModel>(R.layout.activity
     }
 
     override fun edit(bookSource: BookSource) {
-        startActivity<SourceEditActivity>(Pair("data", bookSource.bookSourceUrl))
+        startActivity<BookSourceEditActivity>(Pair("data", bookSource.bookSourceUrl))
     }
 
     override fun upOrder() {
diff --git a/app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceViewModel.kt b/app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceViewModel.kt
index 31accc240..a51b589b3 100644
--- a/app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceViewModel.kt
@@ -16,8 +16,7 @@ class BookSourceViewModel(application: Application) : BaseViewModel(application)
 
     fun topSource(bookSource: BookSource) {
         execute {
-            val minXh = App.db.bookSourceDao().minOrder
-            bookSource.customOrder = minXh - 1
+            bookSource.customOrder = App.db.bookSourceDao().minOrder - 1
             App.db.bookSourceDao().insert(bookSource)
         }
     }
diff --git a/app/src/main/java/io/legado/app/ui/main/explore/ExploreFragment.kt b/app/src/main/java/io/legado/app/ui/main/explore/ExploreFragment.kt
index 6889124f3..ea23c0909 100644
--- a/app/src/main/java/io/legado/app/ui/main/explore/ExploreFragment.kt
+++ b/app/src/main/java/io/legado/app/ui/main/explore/ExploreFragment.kt
@@ -12,7 +12,7 @@ import io.legado.app.base.VMBaseFragment
 import io.legado.app.data.entities.BookSource
 import io.legado.app.lib.theme.ATH
 import io.legado.app.lib.theme.primaryTextColor
-import io.legado.app.ui.book.source.edit.SourceEditActivity
+import io.legado.app.ui.book.source.edit.BookSourceEditActivity
 import io.legado.app.ui.explore.ExploreShowActivity
 import io.legado.app.utils.getViewModel
 import io.legado.app.utils.startActivity
@@ -88,7 +88,7 @@ class ExploreFragment : VMBaseFragment<ExploreViewModel>(R.layout.fragment_find_
     }
 
     override fun editSource(sourceUrl: String) {
-        startActivity<SourceEditActivity>(Pair("data", sourceUrl))
+        startActivity<BookSourceEditActivity>(Pair("data", sourceUrl))
     }
 
     override fun toTop(source: BookSource) {
diff --git a/app/src/main/java/io/legado/app/ui/rss/source/edit/RssSourceEditActivity.kt b/app/src/main/java/io/legado/app/ui/rss/source/edit/RssSourceEditActivity.kt
index 0636afda6..81ff0b823 100644
--- a/app/src/main/java/io/legado/app/ui/rss/source/edit/RssSourceEditActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/rss/source/edit/RssSourceEditActivity.kt
@@ -50,11 +50,8 @@ class RssSourceEditActivity :
             upRecyclerView(it)
         })
         if (viewModel.sourceLiveData.value == null) {
-            val sourceID = intent.getStringExtra("data")
-            if (sourceID == null) {
-                upRecyclerView(null)
-            } else {
-                sourceID.let { viewModel.setSource(sourceID) }
+            intent.getStringExtra("data")?.let {
+                viewModel.setSource(it)
             }
         } else {
             upRecyclerView(viewModel.sourceLiveData.value)
@@ -105,6 +102,7 @@ class RssSourceEditActivity :
         window.decorView.viewTreeObserver.addOnGlobalLayoutListener(KeyboardOnGlobalChangeListener())
         recycler_view.layoutManager = LinearLayoutManager(this)
         recycler_view.adapter = adapter
+        upRecyclerView(null)
     }
 
     private fun upRecyclerView(rssSource: RssSource?) {
diff --git a/app/src/main/java/io/legado/app/ui/rss/source/edit/RssSourceEditViewModel.kt b/app/src/main/java/io/legado/app/ui/rss/source/edit/RssSourceEditViewModel.kt
index 0f002d627..aec9924ea 100644
--- a/app/src/main/java/io/legado/app/ui/rss/source/edit/RssSourceEditViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/rss/source/edit/RssSourceEditViewModel.kt
@@ -18,12 +18,18 @@ class RssSourceEditViewModel(application: Application) : BaseViewModel(applicati
         execute {
             App.db.rssSourceDao().getByKey(key)?.let {
                 sourceLiveData.postValue(it)
-            } ?: sourceLiveData.postValue(RssSource())
+            }
         }
     }
 
     fun save(rssSource: RssSource, success: (() -> Unit)) {
         execute {
+            sourceLiveData.value?.let {
+                rssSource.customOrder = it.customOrder
+                App.db.rssSourceDao().delete(it)
+            } ?: let {
+                rssSource.customOrder = App.db.rssSourceDao().maxOrder + 1
+            }
             App.db.rssSourceDao().insert(rssSource)
         }.onSuccess {
             success()
diff --git a/app/src/main/java/io/legado/app/ui/rss/source/manage/RssSourceViewModel.kt b/app/src/main/java/io/legado/app/ui/rss/source/manage/RssSourceViewModel.kt
index 8915a6cd8..b0ad309d6 100644
--- a/app/src/main/java/io/legado/app/ui/rss/source/manage/RssSourceViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/rss/source/manage/RssSourceViewModel.kt
@@ -9,8 +9,7 @@ class RssSourceViewModel(application: Application) : BaseViewModel(application)
 
     fun topSource(rssSource: RssSource) {
         execute {
-            val minXh = App.db.rssSourceDao().minOrder
-            rssSource.customOrder = minXh - 1
+            rssSource.customOrder = App.db.rssSourceDao().minOrder - 1
             App.db.rssSourceDao().insert(rssSource)
         }
     }