diff --git a/services/native/file_access_service/include/file_access_service.h b/services/native/file_access_service/include/file_access_service.h
index 5d4984c206533412724a48816ab4ff602cf222ab..8822896b02ab63782dd7f4d6d76a00c704bc9df4 100644
--- a/services/native/file_access_service/include/file_access_service.h
+++ b/services/native/file_access_service/include/file_access_service.h
@@ -259,6 +259,7 @@ private:
     int32_t OperateObsNode(Uri &uri, bool notifyForDescendants, uint32_t code,
         const std::shared_ptr<ConnectExtensionInfo> &info);
     void CleanRelativeObserver(const sptr<IFileAccessObserver> &observer);
+    std::vector<Uri> GetUriList(uint32_t code);
     void SendListNotify(std::string uri, NotifyType notifyType, const std::vector<uint32_t> &list);
     void RemoveRelations(std::string &uriStr, std::shared_ptr<ObserverNode> obsNode);
     int FindUri(const std::string &uriStr, std::shared_ptr<ObserverNode> &outObsNode);
diff --git a/services/native/file_access_service/src/file_access_service.cpp b/services/native/file_access_service/src/file_access_service.cpp
index 526a54f9364392682db8a7be87907c446f3b1a7d..0ce00c63b2a2dedc4a3b932f0f8f17bafcb4204d 100644
--- a/services/native/file_access_service/src/file_access_service.cpp
+++ b/services/native/file_access_service/src/file_access_service.cpp
@@ -245,15 +245,26 @@ void FileAccessService::CleanRelativeObserver(const sptr<IFileAccessObserver> &o
     uint32_t code = obsManager_.getId([obsContext](const shared_ptr<ObserverContext>  &afterContext) {
         return obsContext->EqualTo(afterContext);
     });
+    std::vector<Uri> uriLists = GetUriList(code);
+    for (int i = 0; i < uriLists.size(); ++i) {
+        UnregisterNotify(uriLists[i], observer);
+    }
+}
+
+std::vector<Uri> FileAccessService::GetUriList(uint32_t code)
+{
+    lock_guard<mutex> lock(nodeMutex_);
+    std::vector<Uri> uriList;
     for (auto pair : relationshipMap_) {
         auto codeList = pair.second->obsCodeList_;
         auto haveCodeIter = find_if(codeList.begin(), codeList.end(),
             [code](const uint32_t &listCode) { return code == listCode; });
         if (haveCodeIter != codeList.end()) {
             Uri uri(pair.first);
-            UnregisterNotify(uri, observer);
+            uriList.push_back(uri);
         }
     }
+    return uriList;
 }
 
 static void convertUris(Uri uri, std::vector<Uri> &uris)