diff --git a/apps/ai-game-creator-shell/src/view/ui-editor/useUiEditorPage.ts b/apps/ai-game-creator-shell/src/view/ui-editor/useUiEditorPage.ts
index 0fa171077..d6f10938a 100644
--- a/apps/ai-game-creator-shell/src/view/ui-editor/useUiEditorPage.ts
+++ b/apps/ai-game-creator-shell/src/view/ui-editor/useUiEditorPage.ts
@@ -897,7 +897,9 @@ export function useUiEditorSession(
         setStatus('无法删除该节点。');
         return result;
       }
-      if (deletedNodeIds?.has(selectedNodeId ?? '')) setSelectedNodeId(null);
+      if (selectedNodeId != null && deletedNodeIds?.has(selectedNodeId)) {
+        setSelectedNodeId(null);
+      }
       return result;
     },
     [activeImageId, editorDeleteNode, editorUiTrees, selectedNodeId],