diff --git a/api/@ohos.data.unifiedDataChannel.d.ts b/api/@ohos.data.unifiedDataChannel.d.ts
index f7137aba69dc901301ee969ed9e085717dba6f5e..f111323a3fc3085ae2bcbce30b0591db69c2532b 100644
--- a/api/@ohos.data.unifiedDataChannel.d.ts
+++ b/api/@ohos.data.unifiedDataChannel.d.ts
@@ -219,10 +219,22 @@ declare namespace unifiedDataChannel {
      * @syscap SystemCapability.DistributedDataManager.UDMF.Core
      * @crossplatform
      * @atomicservice
-     * @since arkts {'1.1':'14', '1.2':'20'}
-     * @arkts 1.1&1.2
+     * @since 14
      */
     constructor(record: UnifiedRecord);
+
+    /**
+     * Create unified data with a record
+     *
+     * @param { UnifiedRecord } record - Record will add into unified data.
+     * @throws { BusinessError } 401 - Parameter error. Possible causes:1.Mandatory parameters are left unspecified;
+     * <br>2.Incorrect parameters types.
+     * @syscap SystemCapability.DistributedDataManager.UDMF.Core
+     * @since 20
+     * @arkts 1.2
+     */
+    constructor ctorWithRecord(record: UnifiedRecord);
+
     /**
      * Create a empty unified data.
      *
@@ -240,6 +252,12 @@ declare namespace unifiedDataChannel {
      * @arkts 1.1&1.2
      */
     constructor();
+
+    /**
+     * @arkts 1.2
+     */
+    overload constructor { ctorWithRecord };
+
     /**
      * Add a record into unified data
      *
@@ -502,11 +520,30 @@ declare namespace unifiedDataChannel {
      * @syscap SystemCapability.DistributedDataManager.UDMF.Core
      * @crossplatform
      * @atomicservice
-     * @since arkts {'1.1':'14', '1.2':'20'}
-     * @arkts 1.1&1.2
+     * @since 14
      */
     constructor(type: string, value: ValueType);
 
+    /**
+     * Create unified record by type and value.
+     *
+     * @param { string } type - indicates to data type of unified record. It can not be empty. When type of value is
+     * object, parameter type must be pixel-map or want UTD type.
+     * @param { ValueType } value - indicates to value of unified record.
+     * @throws { BusinessError } 401 - Parameter error. Possible causes:1.Mandatory parameters are left unspecified;
+     * <br>2.Incorrect parameters types;
+     * <br>3.Parameter verification failed.
+     * @syscap SystemCapability.DistributedDataManager.UDMF.Core
+     * @since 20
+     * @arkts 1.2
+     */
+    constructor ctorWithValueType(type: string, value: ValueType);
+    
+    /**
+     * @arkts 1.2
+     */
+    overload constructor { ctorWithValueType };
+
     /**
      * Get the value of unified record.
      *
@@ -3597,11 +3634,24 @@ declare namespace unifiedDataChannel {
    * <br>2.Incorrect parameters types.
    * @syscap SystemCapability.DistributedDataManager.UDMF.Core
    * @atomicservice
-   * @since arkts {'1.1':'11', '1.2':'20'}
-   * @arkts 1.1&1.2
+   * @since 11
    */
   function insertData(options: Options, data: UnifiedData, callback: AsyncCallback<string>): void;
 
+  /**
+   * Insert data into unified data channel by Intention
+   *
+   * @param { Options } options - fill the intention field to indicate the target {@link Intention}.
+   * @param { UnifiedData } data - {@link UnifiedData} data object to insert into target intention.
+   * @param { AsyncCallback<string> } callback - {string}: the unique identifier.
+   * @throws { BusinessError } 401 - Parameter error. Possible causes:1.Mandatory parameters are left unspecified;
+   * <br>2.Incorrect parameters types.
+   * @syscap SystemCapability.DistributedDataManager.UDMF.Core
+   * @since 20
+   * @arkts 1.2
+   */
+  function insertDataWithCallback(options: Options, data: UnifiedData, callback: AsyncCallback<string>): void;
+
   /**
    * Insert data into unified data channel by Intention
    *
@@ -3623,11 +3673,29 @@ declare namespace unifiedDataChannel {
    * <br>2.Incorrect parameters types.
    * @syscap SystemCapability.DistributedDataManager.UDMF.Core
    * @atomicservice
-   * @since arkts {'1.1':'11', '1.2':'20'}
-   * @arkts 1.1&1.2
+   * @since 11
    */
   function insertData(options: Options, data: UnifiedData): Promise<string>;
 
+  /**
+   * Insert data into unified data channel by Intention
+   *
+   * @param { Options } options - fill the intention field to indicate the target {@link Intention}.
+   * @param { UnifiedData } data - {@link UnifiedData} data object to insert into target intention.
+   * @returns { Promise<string> } {string}: the unique identifier.
+   * @throws { BusinessError } 401 - Parameter error. Possible causes:1.Mandatory parameters are left unspecified;
+   * <br>2.Incorrect parameters types.
+   * @syscap SystemCapability.DistributedDataManager.UDMF.Core
+   * @since 20
+   * @arkts 1.2
+   */
+  function insertDataReturnsPromise(options: Options, data: UnifiedData): Promise<string>;
+
+  /**
+   * @arkts 1.2
+   */
+  overload insertData { insertDataWithCallback, insertDataReturnsPromise };
+
   /**
    * Update data to unified data channel by Unique Identifier
    *
@@ -3701,11 +3769,25 @@ declare namespace unifiedDataChannel {
    * <br>2.Incorrect parameters types.
    * @syscap SystemCapability.DistributedDataManager.UDMF.Core
    * @atomicservice
-   * @since arkts {'1.1':'11', '1.2':'20'}
-   * @arkts 1.1&1.2
+   * @since 11
    */
   function queryData(options: Options, callback: AsyncCallback<Array<UnifiedData>>): void;
 
+    /**
+   * Query data of unified data channel by Intention or Unique Identifier
+   *
+   * @param { Options } options - fill the intention or unique identifier field to indicate the target {@link Intention}
+   * or {@link UnifiedData}.
+   * @param { AsyncCallback<Array<UnifiedData>> } callback - {Array<UnifiedData>}: the target {@link UnifiedData} object
+   *  array.
+   * @throws { BusinessError } 401 - Parameter error. Possible causes:1.Mandatory parameters are left unspecified;
+   * <br>2.Incorrect parameters types.
+   * @syscap SystemCapability.DistributedDataManager.UDMF.Core
+   * @since 20
+   * @arkts 1.2
+   */
+  function queryDataWithCallback(options: Options, callback: AsyncCallback<Array<UnifiedData>>): void;
+
   /**
    * Query data of unified data channel by Intention or Unique Identifier
    *
@@ -3727,11 +3809,29 @@ declare namespace unifiedDataChannel {
    * <br>2.Incorrect parameters types.
    * @syscap SystemCapability.DistributedDataManager.UDMF.Core
    * @atomicservice
-   * @since arkts {'1.1':'11', '1.2':'20'}
-   * @arkts 1.1&1.2
+   * @since 11
    */
   function queryData(options: Options): Promise<Array<UnifiedData>>;
 
+  /**
+   * Query data of unified data channel by Intention or Unique Identifier
+   *
+   * @param { Options } options - fill the intention or unique identifier field to indicate the target {@link Intention}
+   * or {@link UnifiedData}.
+   * @returns { Promise<Array<UnifiedData>> } {Array<UnifiedData>}: the target {@link UnifiedData} object array.
+   * @throws { BusinessError } 401 - Parameter error. Possible causes:1.Mandatory parameters are left unspecified;
+   * <br>2.Incorrect parameters types.
+   * @syscap SystemCapability.DistributedDataManager.UDMF.Core
+   * @since 20
+   * @arkts 1.2
+   */
+  function queryDataReturnsPromise(options: Options): Promise<Array<UnifiedData>>;
+
+  /**
+   * @arkts 1.2
+   */
+  overload queryData { queryDataWithCallback, queryDataReturnsPromise };
+
   /**
    * Delete data of unified data channel by Intention or Unique Identifier
    *