diff --git a/frameworks/services/media_mtp/include/ptp_media_sync_observer.h b/frameworks/services/media_mtp/include/ptp_media_sync_observer.h
index 1ceed35cb66ccc6ba9495d842027f506f4f266dd..dfd6ecc60fab4a2faa9f814972ea42f1c81d2e78 100644
--- a/frameworks/services/media_mtp/include/ptp_media_sync_observer.h
+++ b/frameworks/services/media_mtp/include/ptp_media_sync_observer.h
@@ -78,6 +78,7 @@ private:
     std::thread notifythread_;
     std::queue<ChangeInfo> changeInfoQueue_;
     std::mutex mutex_;
+    std::mutex burstKeyMutex_;
     std::condition_variable cv_;
     std::atomic<bool> isRunning_ {false};
 
diff --git a/frameworks/services/media_mtp/src/ptp_media_sync_observer.cpp b/frameworks/services/media_mtp/src/ptp_media_sync_observer.cpp
index 2bc34ac4717b05917083c322c9116d08cbc2d2f6..578a6a8babc9f73f17e6814553f9a0a78db15ec7 100644
--- a/frameworks/services/media_mtp/src/ptp_media_sync_observer.cpp
+++ b/frameworks/services/media_mtp/src/ptp_media_sync_observer.cpp
@@ -250,8 +250,11 @@ void MediaSyncObserver::DelayInfoThread()
 
 void MediaSyncObserver::AddBurstPhotoHandle(string burstKey)
 {
-    if (needAddMemberBurstKeys_.find(burstKey) == needAddMemberBurstKeys_.end()) {
-        return;
+    {
+        std::lock_guard<std::mutex> lock(burstKeyMutex_);
+        if (needAddMemberBurstKeys_.find(burstKey) == needAddMemberBurstKeys_.end()) {
+            return;
+        }
     }
     Uri uri(PAH_QUERY_PHOTO);
     vector<string> columns;
@@ -274,7 +277,10 @@ void MediaSyncObserver::AddBurstPhotoHandle(string burstKey)
         int32_t fileId = GetInt32Val(MediaColumn::MEDIA_ID, resultSet);
         SendEventPackets(fileId + COMMON_PHOTOS_OFFSET, MTP_EVENT_OBJECT_ADDED_CODE);
     } while (resultSet->GoToNextRow() == NativeRdb::E_OK);
-    needAddMemberBurstKeys_.erase(burstKey);
+    {
+        std::lock_guard<std::mutex> lock(burstKeyMutex_);
+        needAddMemberBurstKeys_.erase(burstKey);
+    }
 }
 
 void MediaSyncObserver::AddDelayInfo(uint32_t handle, uint32_t ownerAlbumId, const string &burstKey, uint64_t delayMs)
@@ -324,7 +330,10 @@ void MediaSyncObserver::AddPhotoHandle(int32_t handle)
         AddDelayInfo(handle + COMMON_MOVING_OFFSET, ownerAlbumId, "", DELAY_FOR_MOVING_MS);
     } else if (subtype == static_cast<int32_t>(PhotoSubType::BURST)) {
         string burstKey = GetStringVal(PhotoColumn::PHOTO_BURST_KEY, resultSet);
-        needAddMemberBurstKeys_.insert(burstKey);
+        {
+            std::lock_guard<std::mutex> lock(burstKeyMutex_);
+            needAddMemberBurstKeys_.insert(burstKey);
+        }
         AddBurstPhotoHandle(previousAddedBurstKey_);
         previousAddedBurstKey_ = burstKey;
         AddDelayInfo(handle + COMMON_PHOTOS_OFFSET, ownerAlbumId, burstKey, DELAY_FOR_BURST_MS);