diff --git a/packages/plugin-outline-pane/package.json b/packages/plugin-outline-pane/package.json
index 6c6d40425..4cec5ade1 100644
--- a/packages/plugin-outline-pane/package.json
+++ b/packages/plugin-outline-pane/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ali/lowcode-plugin-outline-pane",
-  "version": "0.9.0",
+  "version": "0.9.1",
   "description": "Outline pane for Ali lowCode engine",
   "files": [
     "es",
diff --git a/packages/plugin-outline-pane/src/main.ts b/packages/plugin-outline-pane/src/main.ts
index 11c5951af..c221f02ec 100644
--- a/packages/plugin-outline-pane/src/main.ts
+++ b/packages/plugin-outline-pane/src/main.ts
@@ -135,7 +135,7 @@ export class OutlineMain implements ISensor, ITreeBoard, IScrollable {
     const irect = this.getInsertionRect();
     const originLoc = document.dropLocation;
 
-    const prop = e.dragObject.nodes[0].getPrototype();
+    const prop = e.dragObject.nodes ? e.dragObject.nodes[0].getPrototype() : null;
     if (e.dragObject.type === 'node' && prop && prop.isModal()) {
       return designer.createLocation({
         target: document.rootNode,