diff --git a/distributeddatamgr/relational_store/include/relational_store.h b/distributeddatamgr/relational_store/include/relational_store.h
index 3a1f477179449b0b4266dd820b55171d4aa5e6b9..368ef89c31c7072774ef02d7a2d913631498358b 100644
--- a/distributeddatamgr/relational_store/include/relational_store.h
+++ b/distributeddatamgr/relational_store/include/relational_store.h
@@ -746,6 +746,34 @@ Rdb_TableDetails *OH_Rdb_GetTableDetails(Rdb_ProgressDetails *progress, int32_t
  */
 typedef void (*Rdb_SyncCallback)(Rdb_ProgressDetails *progressDetails);
 
+/**
+* @brief The callback function of syncObserver.
+*
+* @param progressDetails The details of the sync progress.
+* @see Rdb_ProgressDetails.
+* @since 11
+*/
+typedef void (*Rdb_ProgressCallback)(void *context, Rdb_ProgressDetails *progressDetails);
+
+/**
+ * @brief The observer of sync.
+ *
+ * @param progressDetails The details of the sync progress.
+ * @see Rdb_ProgressDetails.
+ * @since 11
+ */
+typedef struct Rdb_ProgressObserver {
+    /**
+    * The context of sync observer.
+    */
+    void *context;
+
+    /**
+    * The callback function of progress observer.
+    */
+    Rdb_ProgressCallback callback;
+} Rdb_ProgressObserver;
+
 /**
  * @brief Sync data to cloud.
  *
@@ -760,7 +788,34 @@ typedef void (*Rdb_SyncCallback)(Rdb_ProgressDetails *progressDetails);
  * @since 11
  */
 int OH_Rdb_CloudSync(OH_Rdb_Store *store, Rdb_SyncMode mode, const char *tables[], uint32_t count,
-    Rdb_SyncCallback *callback);
+    Rdb_SyncCallback observer);
+
+/**
+* @brief Subscribes to the automatic synchronization progress of an RDB store.
+* A callback will be invoked when there is a notification of the automatic synchronization progress.
+*
+* @param store Indicates the pointer to the target {@Link OH_Rdb_Store} instance.
+* @param observer The {@link Rdb_SyncObserver} for the automatic synchornizaiton progress
+* @param Indicates the callback invoked to return the automatic synchronization progress.
+* @return Returns the status code of the execution. See {@link OH_Rdb_ErrCode}.
+* @see OH_Rdb_Store.
+* @see Rdb_SyncObserver.
+* @since 11
+*/
+int OH_Rdb_SubscribeAutoSyncProgress(OH_Rdb_Store *store, Rdb_ProgressObserver *observer);
+
+/**
+* @brief Unsubscribes from the automatic synchronziation progress of an RDB store.
+*
+* @param store Indicates the pointer to the target {@Link OH_Rdb_Store} instance.
+* @param observer Indicates the {@link Rdb_SyncObserver} callback for the automatic synchornizaiton progress.
+* If it is a null pointer, all callbacks for the automatic synchornizaiton progress will be unregistered.
+* @return Returns the status code of the execution. See {@link OH_Rdb_ErrCode}.
+* @see OH_Rdb_Store.
+* @see Rdb_SyncObserver.
+* @since 11
+*/
+int OH_Rdb_UnsubscribeAutoSyncProgress(OH_Rdb_Store *store, Rdb_ProgressObserver *observer);
 #ifdef __cplusplus
 };
 #endif
diff --git a/distributeddatamgr/relational_store/libnative_rdb.ndk.json b/distributeddatamgr/relational_store/libnative_rdb.ndk.json
index 190d3cbb00fce469dd7a1261f1c51bb4bfc7ebbe..295e40339d3ae65b00447f3597027f499a5e8f3f 100644
--- a/distributeddatamgr/relational_store/libnative_rdb.ndk.json
+++ b/distributeddatamgr/relational_store/libnative_rdb.ndk.json
@@ -22,6 +22,8 @@
 	{"name":"OH_Rdb_FindModifyTime"},
 	{"name":"OH_Rdb_GetTableDetails"},
 	{"name":"OH_Rdb_CloudSync"},
+	{"name": "OH_Rdb_SubscribeAutoSyncProgress"},
+	{"name": "OH_Rdb_UnsubscribeAutoSyncProgress"},
 	{"name":"OH_VBucket_PutAsset"},
 	{"name":"OH_VBucket_PutAssets"},
 	{"name":"OH_Data_Asset_SetName"},