diff --git a/zh-cn/application-dev/application-models/create-dataability.md b/zh-cn/application-dev/application-models/create-dataability.md
index 6b204464744ccd16cd4d059dac7e4af6f2b51dd5..02b5bdf84b8eddea32d27e30590f1facfd63a0a8 100644
--- a/zh-cn/application-dev/application-models/create-dataability.md
+++ b/zh-cn/application-dev/application-models/create-dataability.md
@@ -9,18 +9,18 @@
 ```ts
 import featureAbility from '@ohos.ability.featureAbility'
 import dataAbility from '@ohos.data.dataAbility'
-import dataRdb from '@ohos.data.rdb'
+import relationalStore from '@ohos.data.relationalStore'
 
 const TABLE_NAME = 'book'
 const STORE_CONFIG = { name: 'book.db' }
 const SQL_CREATE_TABLE = 'CREATE TABLE IF NOT EXISTS book(id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT NOT NULL, introduction TEXT NOT NULL)'
-let rdbStore: dataRdb.RdbStore = undefined
+let rdbStore: relationalStore.RdbStore = undefined
 
 export default {
   onInitialized(abilityInfo) {
     console.info('DataAbility onInitialized, abilityInfo:' + abilityInfo.bundleName)
     let context = featureAbility.getContext()
-    dataRdb.getRdbStore(context, STORE_CONFIG, 1, (err, store) => {
+    relationalStore.getRdbStore(context, STORE_CONFIG, (err, store) => {
       console.info('DataAbility getRdbStore callback')
       store.executeSql(SQL_CREATE_TABLE, [])
       rdbStore = store
diff --git a/zh-cn/application-dev/application-models/js-ui-widget-development.md b/zh-cn/application-dev/application-models/js-ui-widget-development.md
index ce3d502f6539821846625f23cac749d9c362e456..7ef75f5fb7aeb381dea35b14255d704ebc13863d 100644
--- a/zh-cn/application-dev/application-models/js-ui-widget-development.md
+++ b/zh-cn/application-dev/application-models/js-ui-widget-development.md
@@ -102,7 +102,7 @@ Stage卡片开发，即基于[Stage模型](stage-model-development-overview.md)
    import formBindingData from '@ohos.app.form.formBindingData';
    import formInfo from '@ohos.app.form.formInfo';
    import formProvider from '@ohos.app.form.formProvider';
-   import dataStorage from '@ohos.data.storage';
+   import dataPreferences from '@ohos.data.preferences';
    ```
 
 2. 在EntryFormAbility.ts中，实现FormExtension生命周期接口。
@@ -255,7 +255,7 @@ async function storeFormInfo(formId: string, formName: string, tempFlag: boolean
         "updateCount": 0
     };
     try {
-        const storage = await dataStorage.getStorage(DATA_STORAGE_PATH);
+        const storage = await dataPreferences.getPreferences(this.context, DATA_STORAGE_PATH);
         // put form info
         await storage.put(formId, JSON.stringify(formInfo));
         console.info(`[EntryFormAbility] storeFormInfo, put form info successfully, formId: ${formId}`);
@@ -294,7 +294,7 @@ export default class EntryFormAbility extends FormExtension {
 const DATA_STORAGE_PATH = "/data/storage/el2/base/haps/form_store";
 async function deleteFormInfo(formId: string) {
     try {
-        const storage = await dataStorage.getStorage(DATA_STORAGE_PATH);
+        const storage = await dataPreferences.getPreferences(this.context, DATA_STORAGE_PATH);
         // del form info
         await storage.delete(formId);
         console.info(`[EntryFormAbility] deleteFormInfo, del form info successfully, formId: ${formId}`);
diff --git a/zh-cn/application-dev/application-models/widget-development-fa.md b/zh-cn/application-dev/application-models/widget-development-fa.md
index f31c37dcf514dd958a0b5ec46b6fe45730503c62..1f560396e057c6e4a0e5be36faced92cd0af49b8 100644
--- a/zh-cn/application-dev/application-models/widget-development-fa.md
+++ b/zh-cn/application-dev/application-models/widget-development-fa.md
@@ -114,7 +114,7 @@ FA卡片开发，即基于[FA模型](fa-model-development-overview.md)的卡片
    import formBindingData from '@ohos.app.form.formBindingData';
    import formInfo from '@ohos.app.form.formInfo';
    import formProvider from '@ohos.app.form.formProvider';
-   import dataStorage from '@ohos.data.storage';
+   import dataPreferences from '@ohos.data.preferences';
    ```
 
 2. 在form.ts中，实现卡片生命周期接口
@@ -263,7 +263,7 @@ async function storeFormInfo(formId: string, formName: string, tempFlag: boolean
         "updateCount": 0
     };
     try {
-        const storage = await dataStorage.getStorage(DATA_STORAGE_PATH);
+        const storage = await dataPreferences.getPreferences(this.context, DATA_STORAGE_PATH);
         // put form info
         await storage.put(formId, JSON.stringify(formInfo));
         console.info(`storeFormInfo, put form info successfully, formId: ${formId}`);
@@ -301,7 +301,7 @@ async function storeFormInfo(formId: string, formName: string, tempFlag: boolean
 const DATA_STORAGE_PATH = "/data/storage/el2/base/haps/form_store";
 async function deleteFormInfo(formId: string) {
     try {
-        const storage = await dataStorage.getStorage(DATA_STORAGE_PATH);
+        const storage = await dataPreferences.getPreferences(this.context, DATA_STORAGE_PATH);
         // del form info
         await storage.delete(formId);
         console.info(`deleteFormInfo, del form info successfully, formId: ${formId}`);