diff --git a/zh-cn/application-dev/ability/fa-pageability.md b/zh-cn/application-dev/ability/fa-pageability.md
index 3e44e3ff4f0b1c6c223aa662bed3a7c771bdf84d..9e937b788a1f7fdc2298a99aa5f08bbd52542bb9 100644
--- a/zh-cn/application-dev/ability/fa-pageability.md
+++ b/zh-cn/application-dev/ability/fa-pageability.md
@@ -116,8 +116,8 @@ PageAbility提供命周期回调，开发者可以在`app.js/app.ets`中重写
   },
   );
 ```
-
 ### 启动远程PageAbility（当前仅对系统应用开放）
+>说明：由于DeviceManager的getTrustedDeviceListSync接口仅对系统应用开放，当前启动远程PageAbility仅支持系统应用
 
 **导入模块**
 
diff --git a/zh-cn/application-dev/ability/fa-serviceability.md b/zh-cn/application-dev/ability/fa-serviceability.md
index 7d41a0945e022c059bd3d744c8ba26aa94d0b5ed..12e216aab2d41491d96d79715e21729cf408b55a 100644
--- a/zh-cn/application-dev/ability/fa-serviceability.md
+++ b/zh-cn/application-dev/ability/fa-serviceability.md
@@ -180,7 +180,8 @@ export default {
 }
 ```
 
-### 连接远程Service（当前仅对系统应用开放）
+### 连接远程Service<a name="section126857614019"></a>（当前仅对系统应用开放）
+>说明：由于DeviceManager的getTrustedDeviceListSync接口仅对系统应用开放，当前连接远程Service仅支持系统应用
 
 如果Service需要与Page Ability或其他应用的Service Ability进行跨设备交互，则须创建用于连接的Connection。Service支持其他Ability通过connectAbility()方法与其进行跨设备连接。
 
diff --git a/zh-cn/application-dev/ability/stage-ability.md b/zh-cn/application-dev/ability/stage-ability.md
index d33f91e16aeaff0c070de507363ef2d4df4e3ed0..56d2c71e05b294ce1851b7f88ea3d6510f976722 100644
--- a/zh-cn/application-dev/ability/stage-ability.md
+++ b/zh-cn/application-dev/ability/stage-ability.md
@@ -164,7 +164,8 @@ context.startAbility(want, options).then((data) => {
 })
 ```
 
-### 跨设备启动Ability(当前仅对系统应用开放)
+### 跨设备启动Ability（当前仅对系统应用开放）
+>说明：由于DeviceManager的getTrustedDeviceListSync接口仅对系统应用开放，当前跨设备启动Ability仅支持系统应用
 跨设备场景下，需指定对端设备deviceId，具体示例代码如下：
 ```ts
 let context = this.context
@@ -179,7 +180,7 @@ context.startAbility(want).then((data) => {
     console.error("Failed to start remote ability with error: "+ JSON.stringify(error))
 })
 ```
-从DeviceManager获取指定设备的deviceId，具体示例代码如下：
+从DeviceManager获取指定设备的deviceId。具体示例代码如下：
 ```ts
 import deviceManager from '@ohos.distributedHardware.deviceManager';
 function getRemoteDeviceId() {
diff --git a/zh-cn/application-dev/ability/stage-call.md b/zh-cn/application-dev/ability/stage-call.md
index 46fb51830e2db76a2a1fafd17df573ac90175ef9..beeb70478ba2d9bf921cdc187dcd1e891486e608 100644
--- a/zh-cn/application-dev/ability/stage-call.md
+++ b/zh-cn/application-dev/ability/stage-call.md
@@ -137,8 +137,7 @@ context.startAbilityByCall({
 }).catch((error) => {
     console.error(TAG + 'get caller failed with ' + error)
 })
-```
-在跨设备场景下，需指定对端设备deviceId。应用开发者 根据实际需要做相应处理。具体示例代码如下：
+在跨设备场景下，需指定对端设备deviceId。具体示例代码如下：
 ```ts
 let TAG = '[MainAbility] '
 var caller = undefined
@@ -162,7 +161,7 @@ context.startAbilityByCall({
     console.error(TAG + 'get remote caller failed with ' + error)
 })
 ```
-从DeviceManager获取指定设备的deviceId，具体示例代码如下：
+从DeviceManager获取指定设备的deviceId，getTrustedDeviceListSync接口仅对系统应用开放。具体示例代码如下：
 ```ts
 import deviceManager from '@ohos.distributedHardware.deviceManager';
 var dmClass;