diff --git a/zh-cn/application-dev/reference/apis/js-apis-device-manager.md b/zh-cn/application-dev/reference/apis/js-apis-device-manager.md
index 15753fae2fa08495623e067fcbf2b66cb4c29ed4..56addbc82236ada39376ef5e2c273230398ab67f 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-device-manager.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-device-manager.md
@@ -714,8 +714,8 @@ authenticateDevice(deviceInfo: DeviceInfo, authParam: AuthParam, callback: Async
           console.error("authenticateDevice errCode:" + err.code + ",errMessage:" + err.message);
           return;
       }
-      console.info(TAG + "authenticateDevice result:" + JSON.stringify(data));
-      token = data.pinToken;
+      console.info("authenticateDevice result:" + JSON.stringify(data));
+      let token = data.pinToken;
     });
   } catch (err) {
     console.error("authenticateDevice errCode:" + err.code + ",errMessage:" + err.message);
@@ -795,7 +795,7 @@ verifyAuthInfo(authInfo: AuthInfo, callback: AsyncCallback<{deviceId: string, le
         console.error("verifyAuthInfo errCode:" + err.code + ",errMessage:" + err.message);
         return;
     }
-    console.info(TAG + "verifyAuthInfo result:" + JSON.stringify(data));
+    console.info("verifyAuthInfo result:" + JSON.stringify(data));
     });
   } catch (err) {
     console.error("verifyAuthInfo errCode:" + err.code + ",errMessage:" + err.message);