diff --git a/Distributed/NewsDemo/entry/src/main/js/MainAbility/pages/detail/detail.js b/Distributed/NewsDemo/entry/src/main/js/MainAbility/pages/detail/detail.js
index cbeacd777220988266f5d37de87ec1dff7585194..0486ddbd3786da1e8011d2af10b1f943dcd7fa05 100644
--- a/Distributed/NewsDemo/entry/src/main/js/MainAbility/pages/detail/detail.js
+++ b/Distributed/NewsDemo/entry/src/main/js/MainAbility/pages/detail/detail.js
@@ -110,6 +110,8 @@ export default {
   },
 
   onDestroy() {
-    this.deviceMag.release();
+    if (this.deviceMag !== null && JSON.stringify(this.deviceMag) !== '{}') {
+      this.deviceMag.release();
+    }
   }
 };