diff --git a/en/application-dev/reference/apis/js-apis-distributedKVStore.md b/en/application-dev/reference/apis/js-apis-distributedKVStore.md
index 7dbc21ff6db0ac0115bb3f7eee6e6b7596dd744e..11b7053bbd4ed6e0ebcf6c65fc9d7576d8a080f5 100644
--- a/en/application-dev/reference/apis/js-apis-distributedKVStore.md
+++ b/en/application-dev/reference/apis/js-apis-distributedKVStore.md
@@ -271,10 +271,10 @@ Creates a **KVManager** instance to manage KV stores.
 Stage model:
 
 ```js
-import AbilityStage from '@ohos.application.Ability'
+import UIAbility from '@ohos.app.ability.UIAbility'
 
 let kvManager;
-export default class MyAbilityStage extends AbilityStage {
+export default class EntryAbility extends UIAbility {
     onCreate() {
         console.log("MyAbilityStage onCreate")
         let context = this.context
@@ -722,7 +722,7 @@ Subscribes to service status changes.
 | Name       | Type            | Mandatory| Description                                                        |
 | ------------- | -------------------- | ---- | ------------------------------------------------------------ |
 | event         | string               | Yes  | Event to subscribe to. The value is **distributedDataServiceDie**, which indicates a service status change event.|
-| deathCallback | Callback<void> | Yes  | Callback invoked to return service status changes.                            |
+| deathCallback | Callback<void> | Yes  | Callback invoked to return service status changes.                                                  |
 
 **Example**
 
@@ -2847,7 +2847,7 @@ try {
 
 ### get
 
-get(key: string, callback: AsyncCallback<boolean | string| number | Uint8Array>): void
+get(key: string, callback: AsyncCallback&lt;boolean | string | number | Uint8Array&gt;): void
 
 Obtains the value of the specified key. This API uses an asynchronous callback to return the result.
 
@@ -2898,7 +2898,7 @@ try {
 
 ### get
 
-get(key: string): Promise&lt;boolean | string| number | Uint8Array&gt;
+get(key: string): Promise&lt;boolean | string | number | Uint8Array&gt;
 
 Obtains the value of the specified key. This API uses a promise to return the result.
 
@@ -4849,7 +4849,7 @@ Before calling any method in **DeviceKVStore**, you must use [getKVStore](#getkv
 
 ### get
 
-get(key: string, callback: AsyncCallback<boolean | string| number | Uint8Array>): void
+get(key: string, callback: AsyncCallback&lt;boolean | string | number | Uint8Array&gt;): void
 
 Obtains the value of the specified key for this device. This API uses an asynchronous callback to return the result.
 
@@ -4900,7 +4900,7 @@ try {
 
 ### get
 
-get(key: string): Promise&lt;boolean | string| number | Uint8Array&gt;
+get(key: string): Promise&lt;boolean | string | number | Uint8Array&gt;
 
 Obtains the value of the specified key for this device. This API uses a promise to return the result.
 
@@ -4952,7 +4952,7 @@ try {
 
 ### get
 
-get(deviceId: string, key: string, callback: AsyncCallback&lt;boolean|string|number|Uint8Array&gt;): void
+get(deviceId: string, key: string, callback: AsyncCallback&lt;boolean | string | number | Uint8Array&gt;): void
 
 Obtains a string value that matches the specified device ID and key. This API uses an asynchronous callback to return the result.
 
@@ -5004,7 +5004,7 @@ try {
 
 ### get
 
-get(deviceId: string, key: string): Promise&lt;boolean|string|number|Uint8Array&gt;
+get(deviceId: string, key: string): Promise&lt;boolean | string | number | Uint8Array&gt;
 
 Obtains a string value that matches the specified device ID and key. This API uses a promise to return the result.
 
diff --git a/en/application-dev/reference/apis/js-apis-system-storage.md b/en/application-dev/reference/apis/js-apis-system-storage.md
index 0549fac53863bd341d1ff0d1aa8d0e95a0a262c8..a4a3bb6b5d885308f6a6a28d994b9f27fda27536 100644
--- a/en/application-dev/reference/apis/js-apis-system-storage.md
+++ b/en/application-dev/reference/apis/js-apis-system-storage.md
@@ -51,7 +51,7 @@ export default {
 
 ## storage.set
 
-get(options: SetStorageOptions): void
+set(options: SetStorageOptions): void
 
 Sets the value in the cache based on the specified key.
 
@@ -167,8 +167,8 @@ export default {
 | key      | string                               | Yes  | Key of the data to set.                                |
 | value    | string                               | Yes  | New value to set. The length must be less than 128 bytes.                             |
 | success  | () => void                           | No  | Called when **storage.set()** is called successfully.                     |
-| fail     | (data: string, code: number) => void | No  | Called to return the result when **storage.get()** fails to be called. **data** is the error information, and **code** indicates the error code. |
-| complete | () => void                           | No  | Called when **storage.get()** is complete.                              |
+| fail     | (data: string, code: number) => void | No  | Called to return the result when **storage.set()** fails to be called. **data** is the error information, and **code** indicates the error code. |
+| complete | () => void                           | No  | Called when **storage.set()** is complete.                              |
 
 
 ## ClearStorageOptions