diff --git a/packages/editor/src/initService.ts b/packages/editor/src/initService.ts
index 69b024bc..8a161393 100644
--- a/packages/editor/src/initService.ts
+++ b/packages/editor/src/initService.ts
@@ -29,6 +29,7 @@ import { getDepNodeIds, getNodes, isPage, isValueIncludeDataSource } from '@tmag
 
 import PropsPanel from './layouts/PropsPanel.vue';
 import { isIncludeDataSource } from './utils/editor';
+import { error as logError } from './utils/logger';
 import { EditorProps } from './editorProps';
 import { Services } from './type';
 
@@ -36,6 +37,19 @@ export declare type LooseRequired<T> = {
   [P in string & keyof T]: T[P];
 };
 
+/**
+ * select 为异步串行执行，节点不可选中（如已从 DSL 中移除）时会抛错。
+ * 在 watch 回调中调用不能把拒绝抛回调用方，否则会变成 Vue 的「Unhandled error during execution of watcher callback」，
+ * 这里统一兜底成日志。
+ */
+const selectNode = async (editorService: Services['editorService'], id: Id) => {
+  try {
+    await editorService.select(id);
+  } catch (e) {
+    logError(e);
+  }
+};
+
 export const initServiceState = (
   props: EditorProps,
   {
@@ -193,9 +207,17 @@ export const initServiceState = (
     },
   );
 
+  // defaultSelected 可能早于 modelValue 到位（immediate 首次执行时 root 还是空的，或节点尚未出现在 DSL 中），
+  // 此时 select 会因为「获取不到组件信息」而抛错，交由 root-change 中的选中逻辑在 root 就绪后补上即可。
   watch(
     () => props.defaultSelected,
-    (defaultSelected) => defaultSelected && editorService.select(defaultSelected),
+    (defaultSelected) => {
+      if (!defaultSelected || !editorService.getNodeById(defaultSelected)) {
+        return;
+      }
+
+      selectNode(editorService, defaultSelected);
+    },
     {
       immediate: true,
     },
diff --git a/packages/editor/tests/unit/initService.spec.ts b/packages/editor/tests/unit/initService.spec.ts
index 77de5d14..60270801 100644
--- a/packages/editor/tests/unit/initService.spec.ts
+++ b/packages/editor/tests/unit/initService.spec.ts
@@ -4,12 +4,13 @@
  * Copyright (C) 2025 Tencent.
  */
 import { beforeEach, describe, expect, test, vi } from 'vitest';
-import { defineComponent, h } from 'vue';
+import { defineComponent, h, nextTick } from 'vue';
 import { mount } from '@vue/test-utils';
 
 import { DepTargetType } from '@tmagic/core';
 
 import { initServiceEvents, initServiceState } from '@editor/initService';
+import * as logger from '@editor/utils/logger';
 
 const mkServices = () => {
   const handlers: Record<string, Record<string, any[]>> = {};
@@ -151,6 +152,10 @@ vi.mock('@editor/utils/editor', () => ({
   isIncludeDataSource: vi.fn(() => false),
 }));
 
+vi.mock('@editor/utils/logger', () => ({
+  error: vi.fn(),
+}));
+
 const Wrap = (props: any, services: any) =>
   defineComponent({
     setup() {
@@ -233,11 +238,30 @@ describe('initServiceState', () => {
   });
 
   test('defaultSelected 调用 select', () => {
+    services.editorService.getNodeById.mockReturnValue({ id: 'n1' });
     const props = { defaultSelected: 'n1' } as any;
     mount(Wrap(props, services));
     expect(services.editorService.select).toHaveBeenCalledWith('n1');
   });
 
+  test('defaultSelected 对应节点不存在时不调用 select', () => {
+    services.editorService.getNodeById.mockReturnValue(null);
+    const props = { defaultSelected: 'n1' } as any;
+    mount(Wrap(props, services));
+    expect(services.editorService.select).not.toHaveBeenCalled();
+  });
+
+  test('defaultSelected select 失败时兜底成日志，不产生未处理的拒绝', async () => {
+    const err = new Error('获取不到组件信息');
+    vi.mocked(logger.error).mockClear();
+    services.editorService.getNodeById.mockReturnValue({ id: 'n1' });
+    services.editorService.select.mockRejectedValue(err);
+    const props = { defaultSelected: 'n1' } as any;
+    mount(Wrap(props, services));
+    await nextTick();
+    expect(logger.error).toHaveBeenCalledWith(err);
+  });
+
   test('stageRect 设置 ui state', () => {
     const props = { stageRect: { width: 100 } } as any;
     mount(Wrap(props, services));