diff --git a/en/application-dev/reference/apis/js-apis-inner-application-applicationStateObserver.md b/en/application-dev/reference/apis/js-apis-inner-application-applicationStateObserver.md
index 1e12c17c771021d8bd6dc8f0a38bde2de6d079fc..a36b30aa6ebeff234d11c1f928bbb688664e06bd 100644
--- a/en/application-dev/reference/apis/js-apis-inner-application-applicationStateObserver.md
+++ b/en/application-dev/reference/apis/js-apis-inner-application-applicationStateObserver.md
@@ -43,5 +43,5 @@ let applicationStateObserver = {
         console.log('onProcessStateChanged onProcessStateChanged: ${JSON.stringify(processData)}');
     }
 };
-let observerCode = appManager.registerApplicationStateObserver(applicationStateObserver);
+let observerCode = appManager.on('applicationState', applicationStateObserver);
 ```