diff --git a/app/src/main/java/io/legado/app/constant/AppConst.kt b/app/src/main/java/io/legado/app/constant/AppConst.kt
index e32eeac5d..887c2ba8a 100644
--- a/app/src/main/java/io/legado/app/constant/AppConst.kt
+++ b/app/src/main/java/io/legado/app/constant/AppConst.kt
@@ -46,14 +46,6 @@ object AppConst {
     const val bookGroupLocalNoneId = -5L
     const val bookGroupErrorId = -11L
 
-    const val notificationIdRead = -1122391
-    const val notificationIdAudio = -1122392
-    const val notificationIdCache = -1122393
-    const val notificationIdExport = -1122394
-    const val notificationIdWeb = -1122395
-    const val notificationIdDownload = -1122396
-    const val notificationIdCheckSource = -1122397
-
     const val imagePathKey = "imagePath"
 
     val menuViewNames = arrayOf(
diff --git a/app/src/main/java/io/legado/app/constant/NotificationId.kt b/app/src/main/java/io/legado/app/constant/NotificationId.kt
new file mode 100644
index 000000000..33c0be044
--- /dev/null
+++ b/app/src/main/java/io/legado/app/constant/NotificationId.kt
@@ -0,0 +1,18 @@
+package io.legado.app.constant
+
+/**
+ * 通知ID不能重复,统一规划通知ID
+ */
+object NotificationId {
+
+    const val ReadAloudService = 101
+    const val AudioPlayService = 102
+    const val CacheBookService = 103
+    const val ExportBookService = 104
+    const val WebService = 105
+    const val DownloadService = 106
+    const val CheckSourceService = 107
+    const val Download = 10000
+    const val ExportBook = 201
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/service/AudioPlayService.kt b/app/src/main/java/io/legado/app/service/AudioPlayService.kt
index 9aa625b2b..06e7ec9ea 100644
--- a/app/src/main/java/io/legado/app/service/AudioPlayService.kt
+++ b/app/src/main/java/io/legado/app/service/AudioPlayService.kt
@@ -614,7 +614,7 @@ class AudioPlayService : BaseService(),
             builder.setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
             builder
         }.onSuccess {
-            startForeground(AppConst.notificationIdAudio, it.build())
+            startForeground(NotificationId.AudioPlayService, it.build())
         }
     }
 
diff --git a/app/src/main/java/io/legado/app/service/BaseReadAloudService.kt b/app/src/main/java/io/legado/app/service/BaseReadAloudService.kt
index 3f00ffd30..afe41a479 100644
--- a/app/src/main/java/io/legado/app/service/BaseReadAloudService.kt
+++ b/app/src/main/java/io/legado/app/service/BaseReadAloudService.kt
@@ -429,7 +429,7 @@ abstract class BaseReadAloudService : BaseService(),
             builder.setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
             builder
         }.onSuccess {
-            startForeground(AppConst.notificationIdRead, it.build())
+            startForeground(NotificationId.ReadAloudService, it.build())
         }.onError {
             AppLog.put("创建朗读通知出错,${it.localizedMessage}", it, true)
             //创建通知出错不结束服务就会崩溃,服务必须绑定通知
diff --git a/app/src/main/java/io/legado/app/service/CacheBookService.kt b/app/src/main/java/io/legado/app/service/CacheBookService.kt
index 9db76a996..3224cdc75 100644
--- a/app/src/main/java/io/legado/app/service/CacheBookService.kt
+++ b/app/src/main/java/io/legado/app/service/CacheBookService.kt
@@ -8,6 +8,7 @@ import io.legado.app.constant.AppConst
 import io.legado.app.constant.AppLog
 import io.legado.app.constant.EventBus
 import io.legado.app.constant.IntentAction
+import io.legado.app.constant.NotificationId
 import io.legado.app.data.appDb
 import io.legado.app.help.config.AppConfig
 import io.legado.app.model.CacheBook
@@ -167,7 +168,7 @@ class CacheBookService : BaseService() {
     override fun upNotification() {
         notificationBuilder.setContentText(notificationContent)
         val notification = notificationBuilder.build()
-        startForeground(AppConst.notificationIdCache, notification)
+        startForeground(NotificationId.CacheBookService, notification)
     }
 
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/service/CheckSourceService.kt b/app/src/main/java/io/legado/app/service/CheckSourceService.kt
index 143496350..71f70ab72 100644
--- a/app/src/main/java/io/legado/app/service/CheckSourceService.kt
+++ b/app/src/main/java/io/legado/app/service/CheckSourceService.kt
@@ -9,6 +9,7 @@ import io.legado.app.constant.AppConst
 import io.legado.app.constant.BookSourceType
 import io.legado.app.constant.EventBus
 import io.legado.app.constant.IntentAction
+import io.legado.app.constant.NotificationId
 import io.legado.app.data.appDb
 import io.legado.app.data.entities.Book
 import io.legado.app.data.entities.BookSource
@@ -264,7 +265,7 @@ class CheckSourceService : BaseService() {
         notificationBuilder.setContentText(notificationMsg)
         notificationBuilder.setProgress(allIds.size, checkedIds.size, false)
         postEvent(EventBus.CHECK_SOURCE, notificationMsg)
-        startForeground(AppConst.notificationIdCheckSource, notificationBuilder.build())
+        startForeground(NotificationId.CheckSourceService, notificationBuilder.build())
     }
 
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/service/DownloadService.kt b/app/src/main/java/io/legado/app/service/DownloadService.kt
index 651a4e8ef..da7d31217 100644
--- a/app/src/main/java/io/legado/app/service/DownloadService.kt
+++ b/app/src/main/java/io/legado/app/service/DownloadService.kt
@@ -14,6 +14,7 @@ import io.legado.app.base.BaseService
 import io.legado.app.constant.AppConst
 import io.legado.app.constant.AppLog
 import io.legado.app.constant.IntentAction
+import io.legado.app.constant.NotificationId
 import io.legado.app.utils.IntentType
 import io.legado.app.utils.openFileUri
 import io.legado.app.utils.servicePendingIntent
@@ -102,7 +103,8 @@ class DownloadService : BaseService() {
             request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, fileName)
             // 添加一个下载任务
             val downloadId = downloadManager.enqueue(request)
-            downloads[downloadId] = DownloadInfo(url, fileName, downloads.size + 1)
+            downloads[downloadId] =
+                DownloadInfo(url, fileName, NotificationId.Download + downloads.size)
             queryState()
             if (upStateJob == null) {
                 checkDownloadState()
@@ -224,7 +226,7 @@ class DownloadService : BaseService() {
             .setGroupSummary(true)
             .setOngoing(true)
             .build()
-        startForeground(AppConst.notificationIdDownload, notification)
+        startForeground(NotificationId.DownloadService, notification)
     }
 
     /**
diff --git a/app/src/main/java/io/legado/app/service/ExportBookService.kt b/app/src/main/java/io/legado/app/service/ExportBookService.kt
index 6144b1781..fffde0dac 100644
--- a/app/src/main/java/io/legado/app/service/ExportBookService.kt
+++ b/app/src/main/java/io/legado/app/service/ExportBookService.kt
@@ -19,6 +19,7 @@ import io.legado.app.constant.AppLog
 import io.legado.app.constant.AppPattern
 import io.legado.app.constant.EventBus
 import io.legado.app.constant.IntentAction
+import io.legado.app.constant.NotificationId
 import io.legado.app.data.appDb
 import io.legado.app.data.entities.Book
 import io.legado.app.data.entities.BookChapter
@@ -132,7 +133,7 @@ class ExportBookService : BaseService() {
             .setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
             .setGroup(groupKey)
             .setGroupSummary(true)
-        startForeground(AppConst.notificationIdExport, notification.build())
+        startForeground(NotificationId.ExportBookService, notification.build())
     }
 
     private fun upExportNotification() {
@@ -152,7 +153,7 @@ class ExportBookService : BaseService() {
                 servicePendingIntent<ExportBookService>(IntentAction.stop)
             )
         }
-        notificationManager.notify(AppConst.notificationIdExport + 100, notification.build())
+        notificationManager.notify(NotificationId.ExportBook, notification.build())
     }
 
     private fun export() {
diff --git a/app/src/main/java/io/legado/app/service/WebService.kt b/app/src/main/java/io/legado/app/service/WebService.kt
index 8051c8303..679074e75 100644
--- a/app/src/main/java/io/legado/app/service/WebService.kt
+++ b/app/src/main/java/io/legado/app/service/WebService.kt
@@ -11,6 +11,7 @@ import io.legado.app.base.BaseService
 import io.legado.app.constant.AppConst
 import io.legado.app.constant.EventBus
 import io.legado.app.constant.IntentAction
+import io.legado.app.constant.NotificationId
 import io.legado.app.constant.PreferKey
 import io.legado.app.receiver.NetworkChangedListener
 import io.legado.app.utils.*
@@ -159,7 +160,7 @@ class WebService : BaseService() {
         )
         builder.setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
         val notification = builder.build()
-        startForeground(AppConst.notificationIdWeb, notification)
+        startForeground(NotificationId.WebService, notification)
     }
 
     @SuppressLint("ObsoleteSdkInt")