diff --git a/zh-cn/application-dev/reference/apis/js-apis-useriam-faceauth.md b/zh-cn/application-dev/reference/apis/js-apis-useriam-faceauth.md
index 81efc6156f5bcbd0193f7f532564e503be957e0a..e7b62b26edd06910929557ff5a97f3b78a869b23 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-useriam-faceauth.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-useriam-faceauth.md
@@ -66,7 +66,7 @@ setSurfaceId(surfaceId: string): ResultCode;
   import userIAM_faceAuth from '@ohos.userIAM.faceAuth';
 
   let faceAuthManager = new userIAM_faceAuth.FaceAuthManager()
-  faceAuthManager.setSurfaceId(surfaceIdString);
+  faceAuthManager.setSurfaceId("0");
   ```
 
 ## ResultCode