diff --git a/zh-cn/application-dev/reference/apis-ime-kit/js-apis-inputmethod-sys.md b/zh-cn/application-dev/reference/apis-ime-kit/js-apis-inputmethod-sys.md
index b1e444ef4d21c1b4e230a7ad84f833738b7fa7cb..d25507607e8e4c7b834cb2281498988dd374be55 100644
--- a/zh-cn/application-dev/reference/apis-ime-kit/js-apis-inputmethod-sys.md
+++ b/zh-cn/application-dev/reference/apis-ime-kit/js-apis-inputmethod-sys.md
@@ -292,7 +292,7 @@ enableInputMethod(bundleName: string, extensionName: string, enabledState: Enabl
 | -------- | -------------------------------------- |
 | 201      | permissions check fails. |
 | 202      | not system application. |
-| 12800008 | input method manager service error. |
+| 12800008 | input method manager service error. Possible cause: a system error, such as null pointer, IPC exception.  |
 | 12800018 | the input method is not found. |
 | 12800019 | current operation cannot be applied to the preconfigured default input method. |
 
diff --git a/zh-cn/application-dev/reference/apis-ime-kit/js-apis-inputmethod.md b/zh-cn/application-dev/reference/apis-ime-kit/js-apis-inputmethod.md
index 64fe7708e0962eaa956e70557c1491d87dfe45f9..c3a13cf53b3d94f678984b6fcd03872dfd8877b4 100644
--- a/zh-cn/application-dev/reference/apis-ime-kit/js-apis-inputmethod.md
+++ b/zh-cn/application-dev/reference/apis-ime-kit/js-apis-inputmethod.md
@@ -1151,7 +1151,7 @@ discardTypingText(): Promise<void>
 
 | 错误码ID | 错误信息                             |
 | -------- | -------------------------------------- |
-| 12800003 | input method client error. |
+| 12800003 | input method client error. Possible causes: 1.the edit box is not focused. 2.no edit box is bound to current input method application. |
 | 12800009 | input method client detached. |
 | 12800015 | the other side does not accept the request. |
 
diff --git a/zh-cn/application-dev/reference/apis-ime-kit/js-apis-inputmethodengine.md b/zh-cn/application-dev/reference/apis-ime-kit/js-apis-inputmethodengine.md
index 13043dd9eecc7ebb28b8096880b6749890207b1c..90fbeb76e18711d59c6aeb78dbc486939610a7f6 100644
--- a/zh-cn/application-dev/reference/apis-ime-kit/js-apis-inputmethodengine.md
+++ b/zh-cn/application-dev/reference/apis-ime-kit/js-apis-inputmethodengine.md
@@ -1820,7 +1820,7 @@ startMoving(): void
 | 错误码ID | 错误信息                                                |
 | -------- | ------------------------------------------------------- |
 | 801 | capability not supported. |
-| 12800002 | input method engine error. |
+| 12800002 | input method engine error. Possible causes: 1.input method panel not created. 2.the input method application does not subscribe to related events. |
 | 12800013 | window manager service error. |
 | 12800017 | invalid panel type or panel flag. |