diff --git a/source/src/devtools/global.less b/source/src/devtools/global.less
index 0c014d0..5d7eb2b 100644
--- a/source/src/devtools/global.less
+++ b/source/src/devtools/global.less
@@ -16,6 +16,14 @@
   background-color: #6d6d6d;
 }
 
+.el-tree-node__content {
+  .leaf {
+    span {
+      user-select: none;
+    }
+  }
+}
+
 .el-input {
   input {
     text-align: left !important;
diff --git a/source/src/devtools/ui/index.vue b/source/src/devtools/ui/index.vue
index 95d57d7..550ad12 100644
--- a/source/src/devtools/ui/index.vue
+++ b/source/src/devtools/ui/index.vue
@@ -248,7 +248,7 @@ export default class Index extends Vue {
       treeData = [treeData]
     }
     this.treeData = treeData;
-    if (this.selectedUUID) {
+    if (this._checkSelectedUUID()) {
       this.$nextTick(() => {
         //@ts-ignore
         this.$refs.tree.setCurrentKey(this.selectedUUID);
@@ -257,6 +257,36 @@ export default class Index extends Vue {
     }
   }
 
+  _checkSelectedUUID() {
+    if (this.selectedUUID) {
+      const b = this._findUuidInTree(this.treeData, this.selectedUUID)
+      if (b) {
+        return true;
+      }
+    }
+    this.selectedUUID = null;
+    this.treeItemData = null;
+    return false;
+  }
+
+  _findUuidInTree(data: TreeData[], targetUUID: string) {
+
+    function circle(tree: TreeData[]) {
+      for (let i = 0; i < tree.length; i++) {
+        let item: TreeData = tree[i];
+        if (item.uuid === targetUUID) {
+          return true;
+        }
+        if (circle(item.children)) {
+          return true;
+        }
+      }
+      return false;
+    }
+
+    return circle(data)
+  }
+
   _onMsgNodeInfo(eventData: NodeInfoData) {
     this.isShowDebug = true;
     this.treeItemData = eventData;
@@ -391,9 +421,6 @@ export default class Index extends Vue {
       this._clearTimer();
       this.timerID = setInterval(() => {
         this.onBtnClickUpdateTree();
-        if (this.selectedUUID) {
-          this.sendMsgToContentScript(Msg.NodeInfo, this.selectedUUID);
-        }
       }, time);
     } else {
       this._clearTimer();