diff --git a/zh-cn/application-dev/database/database-preference-guidelines.md b/zh-cn/application-dev/database/database-preference-guidelines.md
index 32584c975dd0ff29d479478bd08672abe4742751..9df95313b16ae4247f4c149fc170f66ee90713d5 100644
--- a/zh-cn/application-dev/database/database-preference-guidelines.md
+++ b/zh-cn/application-dev/database/database-preference-guidelines.md
@@ -113,10 +113,10 @@
 
    ```ts
    // 获取context
-   import Ability from '@ohos.application.Ability'
+   import UIAbility from '@ohos.app.ability.UIAbility'
    let context = null;
    let preferences = null;
-   export default class MainAbility extends Ability {
+   export default class EntryAbility extends UIAbility {
        onWindowStageCreate(windowStage){
            context = this.context;
        }