diff --git a/services/clouddiskservice/sync_folder/include/cloud_disk_service_metafile.h b/services/clouddiskservice/sync_folder/include/cloud_disk_service_metafile.h
index 2611661465091dce56ed40e7ced03d9949236828..0347a8207d1903d5512976923ed4bf13dc68bde6 100644
--- a/services/clouddiskservice/sync_folder/include/cloud_disk_service_metafile.h
+++ b/services/clouddiskservice/sync_folder/include/cloud_disk_service_metafile.h
@@ -142,6 +142,7 @@ public:
         const uint32_t syncFolderIndex, const uint64_t inode);
 
     int32_t GetRelativePath(const std::shared_ptr<CloudDiskServiceMetaFile> metaFile, std::string &path);
+    void CloudDiskServiceClearAll();
 private:
     MetaFileMgr() = default;
     ~MetaFileMgr() = default;
diff --git a/services/clouddiskservice/sync_folder/src/cloud_disk_service_logfile.cpp b/services/clouddiskservice/sync_folder/src/cloud_disk_service_logfile.cpp
index 78385580700b5b0f645f1965e9768860098617a5..7272956665c784b813cd39b298267affca845925 100644
--- a/services/clouddiskservice/sync_folder/src/cloud_disk_service_logfile.cpp
+++ b/services/clouddiskservice/sync_folder/src/cloud_disk_service_logfile.cpp
@@ -602,6 +602,7 @@ int32_t LogFileMgr::UnRegisterSyncFolder(const int32_t userId, const uint64_t sy
     std::lock_guard<std::mutex> lock(mtx_);
     LogFileKey key(userId, syncFolderIndex);
     LogFiles_.erase(key);
+    MetaFileMgr::GetInstance().CloudDiskServiceClearAll();
 
     std::string rootDir =
         "/data/service/el2/" + std::to_string(userId) +
diff --git a/services/clouddiskservice/sync_folder/src/cloud_disk_service_metafile.cpp b/services/clouddiskservice/sync_folder/src/cloud_disk_service_metafile.cpp
index 85c405816ceb30c830c06f27119a6cee53f33e00..92ac1c4fff9b2b43abb088e4e69aa36ace010a9c 100644
--- a/services/clouddiskservice/sync_folder/src/cloud_disk_service_metafile.cpp
+++ b/services/clouddiskservice/sync_folder/src/cloud_disk_service_metafile.cpp
@@ -795,4 +795,11 @@ int32_t MetaFileMgr::GetRelativePath(const std::shared_ptr<CloudDiskServiceMetaF
     return E_OK;
 }
 
+void MetaFileMgr::CloudDiskServiceClearAll()
+{
+    std::lock_guard<std::mutex> lock(mtx_);
+    metaFiles_.clear();
+    metaFileList_.clear();
+}
+
 } // namespace OHOS::FileManagement::CloudDiskService