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 c960996b5..3a5b42efe 100644
--- a/app/src/main/java/io/legado/app/constant/AppConst.kt
+++ b/app/src/main/java/io/legado/app/constant/AppConst.kt
@@ -60,7 +60,8 @@ object AppConst {
             App.INSTANCE.putPrefBoolean("bookGroupAudio", value)
         }
 
-    const val notificationIdRead = 12
-    const val notificationIdAudio = 13
-    const val notificationIdWeb = 14
+    const val notificationIdRead = 1144771
+    const val notificationIdAudio = 1144772
+    const val notificationIdWeb = 1144773
+    const val notificationIdDownload = 1144774
 }
\ 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 5a1233708..2af217bc4 100644
--- a/app/src/main/java/io/legado/app/service/DownloadService.kt
+++ b/app/src/main/java/io/legado/app/service/DownloadService.kt
@@ -1,8 +1,49 @@
 package io.legado.app.service
 
+import android.content.Intent
+import androidx.core.app.NotificationCompat
+import io.legado.app.R
 import io.legado.app.base.BaseService
+import io.legado.app.constant.Action
+import io.legado.app.constant.AppConst
+import io.legado.app.help.IntentHelp
 
 class DownloadService : BaseService() {
 
+    override fun onCreate() {
+        super.onCreate()
+        updateNotification("正在启动下载")
+    }
 
+    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+        intent?.action?.let { action ->
+            when (action) {
+                Action.stop -> stopSelf()
+            }
+        }
+        return super.onStartCommand(intent, flags, startId)
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+    }
+
+    /**
+     * 更新通知
+     */
+    private fun updateNotification(content: String) {
+        val builder = NotificationCompat.Builder(this, AppConst.channelIdDownload)
+            .setSmallIcon(R.drawable.ic_download)
+            .setOngoing(true)
+            .setContentTitle(getString(R.string.download_offline))
+            .setContentText(content)
+        builder.addAction(
+            R.drawable.ic_stop_black_24dp,
+            getString(R.string.cancel),
+            IntentHelp.servicePendingIntent<WebService>(this, Action.stop)
+        )
+        builder.setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
+        val notification = builder.build()
+        startForeground(AppConst.notificationIdDownload, notification)
+    }
 }
\ No newline at end of file