diff --git a/README.md b/README.md
index 3202e70581def03f1236e4f86ad88089c724bbe1..621a9fde7b465e01cb446a95e3f7f589086189b5 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,7 @@
 2. 在首页勾选文件后，通过碰一碰即可分享已选文件。
 3. 若接收端为PC设备，需确保手机与PC登录同一华为账号，方可实现碰一碰分享。
 4. 接收端文件默认存储于图库或文件管理器中，其中PC端应用可通过调用harmonyShare.on('dataReceive')方法注册文件接收监听，碰一碰传输的文件将存储至该应用的沙箱路径下。
+5. PC端应用接收时最大支持接收5个支持。
 
 ### 工程结构
 
diff --git a/entry/src/main/ets/controller/KnockController.ets b/entry/src/main/ets/controller/KnockController.ets
index 7b65f443b4ba41d8ea2a41bbf1f032d1a4cd531c..95dc7f96b2e4c5caaea0b157856bce8068ec2e43 100644
--- a/entry/src/main/ets/controller/KnockController.ets
+++ b/entry/src/main/ets/controller/KnockController.ets
@@ -140,7 +140,16 @@ export class KnockController {
   public dataReceiveListeningPC() {
     window.getLastWindow(this.context).then(((data) => {
       let mainWindowID: number = data.getWindowProperties().id;
-      harmonyShare.on('dataReceive', { windowId: mainWindowID, capabilities: [] },
+      harmonyShare.on('dataReceive', { windowId: mainWindowID, capabilities: [
+        {
+          'utd': uniformTypeDescriptor.UniformDataType.MEDIA,
+          'maxSupportedCount': 5
+        },
+        {
+          'utd': uniformTypeDescriptor.UniformDataType.FILE,
+          'maxSupportedCount': 5
+        }
+      ] },
         (receiveTarget: harmonyShare.ReceivableTarget) => {
           if (!this.context) {
             return;
@@ -197,7 +206,16 @@ export class KnockController {
   public dataReceiveDisableListeningPC() {
     window.getLastWindow(this.context).then(((data) => {
       let mainWindowID: number = data.getWindowProperties().id;
-      harmonyShare.off('dataReceive', { windowId: mainWindowID, capabilities: [] });
+      harmonyShare.off('dataReceive', { windowId: mainWindowID, capabilities: [
+        {
+          'utd': uniformTypeDescriptor.UniformDataType.MEDIA,
+          'maxSupportedCount': 5
+        },
+        {
+          'utd': uniformTypeDescriptor.UniformDataType.FILE,
+          'maxSupportedCount': 5
+        }
+      ] });
     })).catch((error: BusinessError) => {
       hilog.error(0x0000, 'KnockFileShare', `failed to obtain the window. cause ${error.code} ${error.message}`);
     })