diff --git a/runtime/main/extend/systemplugin/napi/application/abilityContext.js b/runtime/main/extend/systemplugin/napi/application/abilityContext.js
index 3cdb1802..d8ca6563 100644
--- a/runtime/main/extend/systemplugin/napi/application/abilityContext.js
+++ b/runtime/main/extend/systemplugin/napi/application/abilityContext.js
@@ -404,6 +404,11 @@ export const AbilityContextClass = class AbilityContext extends ContextClass {
         })
       }
     };
+    this.isTerminating = function () {
+      console.warn("Ability.AbilityContext.isTerminating interface mocked in the Previewer. How this interface works on the Previewer" +
+        " may be different from that on a real device.")
+      return paramMock.paramBooleanMock
+    };
   }
 }
 export function mockAbilityContext() {