diff --git a/window_scene/screen_session_manager/src/fold_screen_controller/super_fold_state_manager.cpp b/window_scene/screen_session_manager/src/fold_screen_controller/super_fold_state_manager.cpp
index d88a426a9af46678801807e191bd7d26fd3fbad7..2ee4487eae0d1141d38ad54e88dc121b533aa8ae 100644
--- a/window_scene/screen_session_manager/src/fold_screen_controller/super_fold_state_manager.cpp
+++ b/window_scene/screen_session_manager/src/fold_screen_controller/super_fold_state_manager.cpp
@@ -514,7 +514,7 @@ DMError SuperFoldStateManager::RefreshExternalRegion()
         TLOGW(WmsLogTag::DMS, "extend screen not connect");
         return DMError::DM_OK;
     }
-    sptr<ScreenSession> mainScreenSession = ScreenSessionManager::GetInstance().GetDefaultScreenSession();
+    sptr<ScreenSession> mainScreenSession = ScreenSessionManager::GetInstance().GetScreenSessionByRsId(SCREEN_ID_FULL);
     if (mainScreenSession == nullptr) {
         TLOGE(WmsLogTag::DMS, "GetScreenSession null");
         return DMError::DM_ERROR_NULLPTR;
diff --git a/window_scene/screen_session_manager/src/screen_session_manager.cpp b/window_scene/screen_session_manager/src/screen_session_manager.cpp
index fbf6275b054586307fa84dce0f63c1a13038e29d..66e98b6ebac8def0649acbb9ff57b0d0c9ca9af8 100644
--- a/window_scene/screen_session_manager/src/screen_session_manager.cpp
+++ b/window_scene/screen_session_manager/src/screen_session_manager.cpp
@@ -1445,6 +1445,9 @@ void ScreenSessionManager::HandleScreenConnectEvent(sptr<ScreenSession> screenSe
     HandlePhysicalMirrorConnect(screenSession, phyMirrorEnable);
     auto clientProxy = GetClientProxy();
 #ifdef FOLD_ABILITY_ENABLE
+    if (FoldScreenStateInternel::IsSuperFoldDisplayDevice()) {
+        SuperFoldStateManager::GetInstance().RefreshExternalRegion();
+    }
     if (foldScreenController_ != nullptr) {
         if ((screenId == 0 || (screenId == SCREEN_ID_MAIN && isCoordinationFlag_ == true)) && clientProxy) {
             TLOGW(WmsLogTag::DMS, "event: connect %{public}" PRIu64 ", %{public}" PRIu64 ", "