diff --git a/ohos/src/main/ets/components/FlutterDownloaderPlugin.ets b/ohos/src/main/ets/components/FlutterDownloaderPlugin.ets
index 19af95eaaf9e7dd77b4f18f737f1916226134e21..b7a2c0b14558ddf75259cc53ad9b563ccf43220f 100644
--- a/ohos/src/main/ets/components/FlutterDownloaderPlugin.ets
+++ b/ohos/src/main/ets/components/FlutterDownloaderPlugin.ets
@@ -17,6 +17,10 @@ import {
   AbilityAware,
   AbilityPluginBinding,
   Any,
+  DartExecutor,
+  FlutterCallbackInformation,
+  FlutterEngine,
+  FlutterInjector,
   FlutterPlugin,
   FlutterPluginBinding,
   MethodCall,
@@ -35,6 +39,7 @@ import { common, Want, wantConstant } from '@kit.AbilityKit';
 import { BusinessError } from '@kit.BasicServicesKit';
 import { request } from '@kit.BasicServicesKit';
 import Logger from './Logger';
+import { DartCallback } from '@ohos/flutter_ohos/src/main/ets/embedding/engine/dart/DartExecutor';
 
 const invalidTaskId = "invalid_task_id";
 const invalidStatus = "invalid_status";
@@ -46,10 +51,12 @@ export class FlutterDownloaderPlugin implements FlutterPlugin, MethodCallHandler
   public static readonly SHARED_PREFERENCES_KEY = 'vn.hunghd.downloader.pref';
   public static readonly CALLBACK_DISPATCHER_HANDLE_KEY = "callback_dispatcher_handle_key";
   private flutterChannel: MethodChannel | null = null;
+  private backgroundChannel: MethodChannel | null = null;
   private flutterPluginBinding: FlutterPluginBinding | null = null;
   private taskDao: TaskDao | null = null;
   private context: common.UIAbilityContext | null = null;
   private callbackHandle: number = 0;
+  private backgroundFlutterEngine: FlutterEngine | null = null;
   private debugMode: number = 0;
   private tasks: Set<string> = new Set();
 
@@ -79,6 +86,10 @@ export class FlutterDownloaderPlugin implements FlutterPlugin, MethodCallHandler
       this.flutterChannel.setMethodCallHandler(null);
       this.flutterChannel = null;
     }
+    if (this.backgroundChannel != null) {
+      this.backgroundChannel.setMethodCallHandler(null);
+      this.backgroundChannel = null;
+    }
   }
 
   getUniqueClassName(): string {
@@ -356,6 +367,8 @@ export class FlutterDownloaderPlugin implements FlutterPlugin, MethodCallHandler
     preferences.getPreferencesSync(this.context, { name: FlutterDownloaderPlugin.SHARED_PREFERENCES_KEY })
       .putSync(FlutterDownloaderPlugin.CALLBACK_DISPATCHER_HANDLE_KEY, this.callbackHandle);
     result.success(null)
+
+    this.startBackgroundIsolate(this.callbackHandle);
   }
 
   private sendUpdateProgress(id: string, status: DownloadStatus, progress: number): void {
@@ -420,6 +433,12 @@ export class FlutterDownloaderPlugin implements FlutterPlugin, MethodCallHandler
         lastProgress = -1;
       } else {
         lastProgress = Math.trunc(progress.processed * 100 / progress.sizes[0]);
+
+        const args: Map<string, Any> = new Map<string, Any>();
+        args["task_id"] = taskId
+        args["status"] = status
+        args["progress"] = lastProgress
+        this.backgroundChannel?.invokeMethod('', [this.callbackHandle, taskId, status, lastProgress])
       }
       const values: ValuesBucket = {};
       values[TaskEntry.COLUMN_NAME_FILE_NAME] = filename;
@@ -549,4 +568,26 @@ export class FlutterDownloaderPlugin implements FlutterPlugin, MethodCallHandler
 
     return Promise.resolve(taskId);
   }
+
+  private async startBackgroundIsolate(handle: number) {
+    if (this.backgroundFlutterEngine == null) {
+      let context = this.context ?? getContext(this);
+      this.backgroundFlutterEngine = new FlutterEngine(context, null, null, null);
+      await this.backgroundFlutterEngine.init(context, null, true);
+
+      let flutterCallback = FlutterCallbackInformation.lookupCallbackInformation(handle);
+      if (flutterCallback == null) {
+        Logger.error(TAG, `Fatal: failed to find callback".`);
+        return
+      }
+      let resourceManager = context.getApplicationContext().resourceManager;
+      let appBundlePath = FlutterInjector.getInstance().getFlutterLoader().findAppBundlePath();
+      this.backgroundFlutterEngine?.dartExecutor.executeDartCallback(
+        new DartCallback(resourceManager, appBundlePath, flutterCallback)
+      )
+    }
+    this.backgroundChannel =
+      new MethodChannel(this.backgroundFlutterEngine.getDartExecutor().getBinaryMessenger(), "vn.hunghd/downloader_background");
+    this.backgroundChannel.setMethodCallHandler(this);
+  }
 }
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