diff --git a/service/window_manager/src/input_windows_manager.cpp b/service/window_manager/src/input_windows_manager.cpp
index be5d2c5143130037aebf989e2eedf1ee4d6f122a..fa0477294722a6b3e193ef1e3497922cedc069b0 100644
--- a/service/window_manager/src/input_windows_manager.cpp
+++ b/service/window_manager/src/input_windows_manager.cpp
@@ -1028,6 +1028,8 @@ int32_t InputWindowsManager::GetMainScreenDisplayInfo(const DisplayGroupInfo &di
 void InputWindowsManager::SendBackCenterPointerEevent(const CursorPosition &cursorPos)
 {
     CALL_DEBUG_ENTER;
+    auto filterHandler = InputHandler->GetFilterHandler();
+    CHKPV(filterHandler);
     int32_t lastPointerAction = lastPointerEvent_->GetPointerAction();
     std::shared_ptr<PointerEvent> pointerBackCenterEvent = std::make_shared<PointerEvent>(*lastPointerEvent_);
     pointerBackCenterEvent->SetTargetDisplayId(cursorPos.displayId);
@@ -1055,7 +1057,7 @@ void InputWindowsManager::SendBackCenterPointerEevent(const CursorPosition &curs
         pointerBackCenterEvent->SetPointerAction(PointerEvent::POINTER_ACTION_PULL_CANCEL);
     }
     MMI_HILOGD("pointerBackCenterEvent status: %{public}s", pointerBackCenterEvent->ToString().c_str());
-    InputHandler->GetFilterHandler()->HandlePointerEvent(pointerBackCenterEvent);
+    filterHandler->HandlePointerEvent(pointerBackCenterEvent);
 }
 
 void InputWindowsManager::ResetPointerPosition(const DisplayGroupInfo &displayGroupInfo)