diff --git a/zh-cn/application-dev/media/camera-device-input.md b/zh-cn/application-dev/media/camera-device-input.md
index 6aa0dfc4328e3fbfb7da000627e4b9ac4bf32224..b3ceea2db9ad0456ec9c44847f5ff3ef561c2642 100644
--- a/zh-cn/application-dev/media/camera-device-input.md
+++ b/zh-cn/application-dev/media/camera-device-input.md
@@ -75,7 +75,7 @@
   通过注册cameraStatus事件，通过回调返回监听结果，callback返回CameraStatusInfo参数，参数的具体内容可参考相机管理器回调接口实例[CameraStatusInfo](../reference/apis/js-apis-camera.md#camerastatusinfo)。
   
 ```ts
-cameraManager.on('cameraStatus', (cameraStatusInfo) => {
+cameraManager.on('cameraStatus', (err, cameraStatusInfo) => {
   console.info(`camera: ${cameraStatusInfo.camera.cameraId}`);
   console.info(`status: ${cameraStatusInfo.status}`);
 })
diff --git a/zh-cn/application-dev/media/camera-metadata.md b/zh-cn/application-dev/media/camera-metadata.md
index c4c5f32656a403af4bb13062bfbafe77fec46489..9e681e0b819b5d93a62e8b948a46b221bf6e44f1 100644
--- a/zh-cn/application-dev/media/camera-metadata.md
+++ b/zh-cn/application-dev/media/camera-metadata.md
@@ -48,7 +48,7 @@ Metadata主要是通过一个TAG（Key），去找对应的Data，用于传递
 - 通过注册监听获取metadata对象，监听事件固定为metadataObjectsAvailable。检测到有效metadata数据时，callback返回相应的metadata数据信息，metadataOutput创建成功时可监听。
     
   ```ts
-  metadataOutput.on('metadataObjectsAvailable', (metadataObjectArr) => {
+  metadataOutput.on('metadataObjectsAvailable', (err, metadataObjectArr) => {
       console.info(`metadata output metadataObjectsAvailable`);
   })
   ```
diff --git a/zh-cn/application-dev/media/camera-recording-case.md b/zh-cn/application-dev/media/camera-recording-case.md
index ce31512966b3af7305f777f67af36c53a383944e..a1f980fd2af149a10a9fce339d8f18f28c7bba6c 100644
--- a/zh-cn/application-dev/media/camera-recording-case.md
+++ b/zh-cn/application-dev/media/camera-recording-case.md
@@ -22,7 +22,7 @@ if (!cameraManager) {
 } 
 
 // 监听相机状态变化
-cameraManager.on('cameraStatus', (cameraStatusInfo) => {
+cameraManager.on('cameraStatus', (err, cameraStatusInfo) => {
     console.log(`camera : ${cameraStatusInfo.camera.cameraId}`);
     console.log(`status: ${cameraStatusInfo.status}`);
 })
diff --git a/zh-cn/application-dev/media/camera-shooting-case.md b/zh-cn/application-dev/media/camera-shooting-case.md
index aa85b7136740b20d84a955e5fccdb4301113914d..c8f307cc352937643b72e9942730bae8db0c5a87 100644
--- a/zh-cn/application-dev/media/camera-shooting-case.md
+++ b/zh-cn/application-dev/media/camera-shooting-case.md
@@ -21,7 +21,7 @@ if (!cameraManager) {
     return;
 } 
 // 监听相机状态变化
-cameraManager.on('cameraStatus', (cameraStatusInfo) => {
+cameraManager.on('cameraStatus', (err, cameraStatusInfo) => {
     console.info(`camera : ${cameraStatusInfo.camera.cameraId}`);
     console.info(`status: ${cameraStatusInfo.status}`);
 })
diff --git a/zh-cn/application-dev/media/camera-shooting.md b/zh-cn/application-dev/media/camera-shooting.md
index 1b868fb8ba241472f95e2b3011dede1810bd8435..9f16f3210151e9d9e92fb64fc16a68a6c3c5d538 100644
--- a/zh-cn/application-dev/media/camera-shooting.md
+++ b/zh-cn/application-dev/media/camera-shooting.md
@@ -136,7 +136,7 @@
 - 通过注册固定的captureStart回调函数获取监听拍照开始结果，photoOutput创建成功时即可监听，拍照第一次曝光时触发，该事件返回此次拍照的captureId。
     
   ```ts
-  photoOutput.on('captureStart', (captureId) => {
+  photoOutput.on('captureStart', (err, captureId) => {
       console.info(`photo capture stated, captureId : ${captureId}`);
   })
   ```
@@ -144,7 +144,7 @@
 - 通过注册固定的captureEnd回调函数获取监听拍照结束结果，photoOutput创建成功时即可监听，该事件返回结果为拍照完全结束后的相关信息[CaptureEndInfo](../reference/apis/js-apis-camera.md#captureendinfo)。
     
   ```ts
-  photoOutput.on('captureEnd', (captureEndInfo) => {
+  photoOutput.on('captureEnd', (err, captureEndInfo) => {
       console.info(`photo capture end, captureId : ${captureEndInfo.captureId}`);
       console.info(`frameCount : ${captureEndInfo.frameCount}`);
   })
diff --git a/zh-cn/application-dev/reference/apis/js-apis-camera.md b/zh-cn/application-dev/reference/apis/js-apis-camera.md
index 91c398211ef607dbaad4cdead92939d23e312a12..0600df081b90a7b5682f88625ed615361e0c3c45 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-camera.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-camera.md
@@ -576,7 +576,7 @@ on(type: 'cameraMute', callback: AsyncCallback\<boolean\>): void
 **示例：**
 
 ```js
-cameraManager.on('cameraMute', (curMuetd) => {
+cameraManager.on('cameraMute', (err, curMuetd) => {
     let isMuted = curMuetd;
 })
 ```
@@ -2283,7 +2283,7 @@ on(type: 'focusStateChange', callback: AsyncCallback\<FocusState\>): void
 **示例：**
 
 ```js
-captureSession.on('focusStateChange', (focusState) => {
+captureSession.on('focusStateChange', (err, focusState) => {
     console.log(`Focus state  : ${focusState}`);
 })
 ```
@@ -2885,7 +2885,7 @@ on(type: 'captureStart', callback: AsyncCallback\<number\>): void
 **示例：**
 
 ```js
-photoOutput.on('captureStart', (captureId) => {
+photoOutput.on('captureStart', (err, captureId) => {
     console.log(`photo capture stated, captureId : ${captureId}`);
 })
 ```
@@ -2908,7 +2908,7 @@ on(type: 'frameShutter', callback: AsyncCallback\<FrameShutterInfo\>): void
 **示例：**
 
 ```js
-photoOutput.on('frameShutter', (frameShutterInfo) => {
+photoOutput.on('frameShutter', (err, frameShutterInfo) => {
     console.log(`photo capture end, captureId : ${frameShutterInfo.captureId}`);
     console.log(`Timestamp for frame : ${frameShutterInfo.timestamp}`);
 })
@@ -2932,7 +2932,7 @@ on(type: 'captureEnd', callback: AsyncCallback\<CaptureEndInfo\>): void
 **示例：**
 
 ```js
-photoOutput.on('captureEnd', (captureEndInfo) => {
+photoOutput.on('captureEnd', (err, captureEndInfo) => {
     console.log(`photo capture end, captureId : ${captureEndInfo.captureId}`);
     console.log(`frameCount : ${captureEndInfo.frameCount}`);
 })
@@ -3380,7 +3380,7 @@ on(type: 'metadataObjectsAvailable', callback: AsyncCallback\<Array\<MetadataObj
 **示例：**
 
 ```js
-metadataOutput.on('metadataObjectsAvailable', (metadataObjectArr) => {
+metadataOutput.on('metadataObjectsAvailable', (err, metadataObjectArr) => {
     console.log(`metadata output metadataObjectsAvailable`);
 })
 ```