diff --git a/zh-cn/application-dev/reference/apis/js-apis-data-dataShare.md b/zh-cn/application-dev/reference/apis/js-apis-data-dataShare.md
index 9c065da8f1036e04bdce7f2b753e18a807ab1699..b83b3f3cb3449ea85194ec8ddc36579d8cd4ae9c 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-data-dataShare.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-data-dataShare.md
@@ -199,7 +199,7 @@ try {
 | 名称 | 类型 | 必填 | 说明 |
 | -------- | -------- | -------- | -------- |
 | key | string | 是 | 指定发布数据的键。 |
-| data | string \| ArrayBuffer | 是 | 指定发布的数据。如果数据很大，请使用ArrayBuffer。 |
+| data | string \| ArrayBuffer | 是 | 指定发布的数据。如果数据很大，请使用ArrayBuffer，建议20KB及以上使用ArrayBuffer。 |
 | subscriberId | string | 是 | 指定订阅者id。 |
 
 ## RdbDataChangeNode<sup>10+</sup>
diff --git a/zh-cn/release-notes/changelogs/OpenHarmony_4.0.8.2/changelogs-datashare.md b/zh-cn/release-notes/changelogs/OpenHarmony_4.0.8.2/changelogs-datashare.md
index 87e7314bf16c129e0cba2f537131cf4692c67bab..8297f9f766c66ecc0112c2ff7bb69c80d24bb798 100644
--- a/zh-cn/release-notes/changelogs/OpenHarmony_4.0.8.2/changelogs-datashare.md
+++ b/zh-cn/release-notes/changelogs/OpenHarmony_4.0.8.2/changelogs-datashare.md
@@ -21,115 +21,19 @@
 **适配指导**
 示例代码如下：
 
-变更前代码示例：
-
-**示例**
-
-```ts
-import rpc from '@ohos.rpc';
-
-function onPublishCallback(err, node:dataShare.PublishedDataChangeNode) {
-    console.info("onPublishCallback node bundleName " + JSON.stringify(node.bundleName));
-    console.info("onPublishCallback node data size" + node.data.length);
-    for (let i = 0; i < node.data.length; i++) {
-        console.info("onPublishCallback node " + typeof node.data[i].data);
-        if (typeof node.data[i].data != 'string') {
-            let ash:rpc.Ashmem = node.data[i].data;
-            ash.mapReadonlyAshmem();
-            console.info("onPublishCallback " + JSON.stringify(ash.readAshmem(ash.getAshmemSize()/4, 0)));
-            ash.closeAshmem();
-        }
-        console.info("onPublishCallback data " + i + " " + JSON.stringify(node.data[i]));
-    }
-}
-let uris:Array<string> = ['city', 'datashareproxy://com.acts.ohos.data.datasharetest/appInfo', 'key2'];
-let subscriberId = '11';
-let result: Array<dataShare.OperationResult> = dataShareHelper.on('publishedDataChange', uris, subscriberId, onPublishCallback);
-```
-
-**示例**
-
-```ts
-import rpc from '@ohos.rpc';
-
-let ashmem = null;
-let subscriberId = '11';
-let version = 1;
-let data : Array<dataShare.PublishedItem> = [
-    {key:"city", subscriberId:"11", data:"xian"},
-    {key:"datashareproxy://com.acts.ohos.data.datasharetest/appInfo", subscriberId:"11", data:"appinfo is just a test app"},
-    {key:"empty", subscriberId:"11", data:"nobody sub"}];
-let nums:number[] = [1,2,3];
-function publishCallback(err, result: Array<dataShare.OperationResult>) {
-    console.info("publishCallback " + JSON.stringify(result));
-    ashmem.closeAshmem();
-}
-try {
-    ashmem = rpc.Ashmem.create("ashmem", (nums.length) * 4);
-    ashmem.mapReadWriteAshmem();
-    ashmem.writeAshmem(nums, nums.length, 0);
-    data.push({
-        "key" : "key2",
-        "data" : ashmem,
-        "subscriberId" : "11",
-    });
-    console.info("data length is:", data.length);
-    dataShareHelper.publish(data, "com.acts.ohos.data.datasharetest", version, publishCallback);
-} catch (e) {
-    console.error("publish error " + JSON.stringify(e));
-}
-```
-
-变更后代码示例：
-
 **示例：**
 
 ```ts
-import rpc from '@ohos.rpc';
-
 function onPublishCallback(err, node:dataShare.PublishedDataChangeNode) {
-    console.info("onPublishCallback node bundleName " + JSON.stringify(node.bundleName));
-    console.info("onPublishCallback node data size" + node.data.length);
     for (let i = 0; i < node.data.length; i++) {
-        console.info("onPublishCallback node " + typeof node.data[i].data);
         if (typeof node.data[i].data != 'string') {
             let array:ArrayBuffer = node.data[i].data;
             let data:Uint8Array = new Uint8Array(array);
-            console.info("onPublishCallback " + i + " " + JSON.stringify(data));
+            console.info("onPublishCallback " + JSON.stringify(data));
         }
-        console.info("onPublishCallback data " + i + " " + JSON.stringify(node.data[i]));
     }
 }
 let uris:Array<string> = ['city', 'datashareproxy://com.acts.ohos.data.datasharetest/appInfo', 'key2'];
 let subscriberId = '11';
 let result: Array<dataShare.OperationResult> = dataShareHelper.on('publishedDataChange', uris, subscriberId, onPublishCallback);
-```
-
-**示例：**
-
-```ts
-let arrayBuffer = null;
-let subscriberId = '11';
-let version = 1;
-let data : Array<dataShare.PublishedItem> = [
-    {key:"city", subscriberId:"11", data:"xian"},
-    {key:"datashareproxy://com.acts.ohos.data.datasharetest/appInfo", subscriberId:"11", data:"appinfo is just a test app"},
-    {key:"empty", subscriberId:"11", data:"nobody sub"}];
-let nums:number[] = [1,2,3];
-function publishCallback(err, result: Array<dataShare.OperationResult>) {
-    console.info("publishCallback " + JSON.stringify(result));
-}
-try {
-    arrayBuffer = new ArrayBuffer(nums.length);
-    let array:Uint8Array = new Uint8Array(arrayBuffer);
-    data.push({
-        "key" : "key2",
-        "data" : array,
-        "subscriberId" : "11",
-    });
-    console.info("data length is:", data.length);
-    dataShareHelper.publish(data, "com.acts.ohos.data.datasharetest", version, publishCallback);
-} catch (e) {
-    console.error("publish error " + JSON.stringify(e));
-}
 ```
\ No newline at end of file