diff --git a/packages/core/client/src/flow/models/blocks/form/FormBlockModel.tsx b/packages/core/client/src/flow/models/blocks/form/FormBlockModel.tsx
index 1a5392ecec8..8f9fcb97f59 100644
--- a/packages/core/client/src/flow/models/blocks/form/FormBlockModel.tsx
+++ b/packages/core/client/src/flow/models/blocks/form/FormBlockModel.tsx
@@ -18,6 +18,7 @@ import {
 } from '@nocobase/flow-engine';
 import { Form, FormInstance } from 'antd';
 import { omit } from 'lodash';
+import { getValuesByPath } from '@nocobase/shared';
 import React, { useCallback, useEffect, useLayoutEffect, useRef, useState } from 'react';
 import { commonConditionHandler, ConditionBuilder } from '../../../components/ConditionBuilder';
 import {
@@ -306,6 +307,18 @@ export class FormBlockModel<
           const topValue = this.form?.getFieldValue?.(top);
           if (topValue == null) return false;
           if (Array.isArray(topValue) && topValue.length === 0) return false;
+
+          // 本地优先：支持对多关系的 dot 聚合路径（例如 assignees.name）。
+          // lodash.get 对数组聚合路径会返回 undefined（如 _.get({ assignees:[{name:'A'}] }, 'assignees.name')），
+          // 因而这里先用 getValuesByPath 做一次前端可解析性检查，命中则直接前端解析。
+          const formValuesSnapshot = runtime.getFormValuesSnapshot();
+          if (formValuesSnapshot && typeof formValuesSnapshot === 'object') {
+            const localResolved = getValuesByPath(formValuesSnapshot as Record<string, any>, subPath);
+            if (typeof localResolved !== 'undefined') {
+              return false;
+            }
+          }
+
           // 已配置字段：仅关联字段的子路径按需服务端补全（保持现有语义）
           const assocResolver = createAssociationSubpathResolver(
             () => this.collection,
diff --git a/packages/core/client/src/flow/models/blocks/form/__tests__/FormBlockModel.test.tsx b/packages/core/client/src/flow/models/blocks/form/__tests__/FormBlockModel.test.tsx
index 52c63058176..015ad2e6b1f 100644
--- a/packages/core/client/src/flow/models/blocks/form/__tests__/FormBlockModel.test.tsx
+++ b/packages/core/client/src/flow/models/blocks/form/__tests__/FormBlockModel.test.tsx
@@ -435,6 +435,48 @@ describe('FormBlockModel (form/formValues injection & server resolve anchors)',
     expect(api.request).toHaveBeenCalledTimes(1);
   });
 
+  it('configured toMany dot aggregation path uses local value and skips server', async () => {
+    const model = await setupFormModel();
+
+    const api = {
+      request: vi.fn(async () => {
+        return { data: { ok: true } } as any;
+      }),
+    } as any;
+    (model.flowEngine.context as any).defineProperty('api', { value: api });
+
+    function HookCaller() {
+      model.useHooksBeforeRender();
+      return null;
+    }
+    render(React.createElement(HookCaller));
+
+    const mem: Record<string, any> = {};
+    const fakeForm = {
+      setFieldsValue: (v: any) => Object.assign(mem, v),
+      getFieldsValue: () => ({ ...mem }),
+      getFieldValue: (namePath: any) => getByPath(mem, namePath),
+      setFieldValue: (k: string, v: any) => (mem[k] = v),
+    };
+    (model.context as any).defineProperty('form', { value: fakeForm });
+    fakeForm.setFieldsValue({
+      assignees: [
+        { id: 3, name: 'A' },
+        { id: 5, name: 'B' },
+      ],
+    });
+    mockFormGridEnabledFields(model, ['assignees']);
+
+    const tpl = { names: '{{ ctx.formValues.assignees.name }}' } as any;
+    const out = await (model.context as any).resolveJsonTemplate(tpl);
+    expect(out).toEqual({ names: ['A', 'B'] });
+    expect(api.request).toHaveBeenCalledTimes(0);
+
+    const names = await (model.context as any).getVar('ctx.formValues.assignees.name');
+    expect(names).toEqual(['A', 'B']);
+    expect(api.request).toHaveBeenCalledTimes(0);
+  });
+
   it('unconfigured field: new record returns undefined and does not call server', async () => {
     const model = await setupFormModel();