diff --git a/src/pages/DriversPage.test.tsx b/src/pages/DriversPage.test.tsx
index 6edd799..2dac6f8 100644
--- a/src/pages/DriversPage.test.tsx
+++ b/src/pages/DriversPage.test.tsx
@@ -118,3 +118,30 @@ describe('DriversPage 評價欄（B5）', () => {
     });
   });
 });
+
+describe('DriversPage 評價排序方向', () => {
+  beforeEach(() => {
+    setRole('superadmin');
+    mockFetchDrivers.mockReset();
+    mockFetchDrivers.mockResolvedValue([
+      { ID: 1, Name: '高分司機', Phone: '', LineUserID: 'l1', Status: 1, RatingAvg: 4.8, RatingCount: 25 },
+      { ID: 2, Name: '低分司機', Phone: '', LineUserID: 'l2', Status: 1, RatingAvg: 2.5, RatingCount: 4 },
+      { ID: 3, Name: '新司機', Phone: '', LineUserID: 'l3', Status: 1, RatingAvg: 0, RatingCount: 0 },
+    ]);
+  });
+
+  // 迴歸：antd 做降序是把比較結果整個反轉，特例不跟著反轉的話沒評分的會浮到最前面。
+  it('降序時沒評分的仍排最後（antd 會反轉比較結果）', async () => {
+    const user = userEvent.setup();
+    renderWithProviders(<DriversPage />);
+    await waitFor(() => expect(screen.getByText('高分司機')).toBeInTheDocument());
+
+    await user.click(screen.getByText('評價')); // 升序
+    await user.click(screen.getByText('評價')); // 降序
+
+    await waitFor(() => {
+      const names = screen.getAllByRole('row').slice(1).map((r) => r.querySelector('a')?.textContent ?? '');
+      expect(names).toEqual(['高分司機', '低分司機', '新司機']);
+    });
+  });
+});
diff --git a/src/pages/DriversPage.tsx b/src/pages/DriversPage.tsx
index fbec549..913b9cf 100644
--- a/src/pages/DriversPage.tsx
+++ b/src/pages/DriversPage.tsx
@@ -2,6 +2,7 @@ import { useMemo, useState } from 'react';
 import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
 import { App, Button, Card, Empty, Input, Select, Space, Switch, Table, Tag, Tooltip } from 'antd';
 import type { ColumnsType } from 'antd/es/table';
+import type { SortOrder } from 'antd/es/table/interface';
 import { Link } from 'react-router-dom';
 import { StarFilled } from '@ant-design/icons';
 
@@ -197,11 +198,16 @@ export default function DriversPage() {
       title: '評價',
       width: 120,
       // 可排序：營運要能一眼找出評價最低的司機，那正是這一欄存在的理由。
-      // **沒評分的排在最後**（不是最前）——0 則不代表差，不該混進低分名單。
-      sorter: (a: Driver, b: Driver) => {
+      // **沒評分的兩個方向都排最後**（不是最前）——0 則不代表差，不該混進低分名單。
+      //
+      // `sortOrder` 不可省：antd 做降序的方式是**把比較結果整個反轉**，
+      // 所以「沉底」的特例不跟著反轉的話，降序時沒評分的會被推到最前面
+      // （2026-07-27 實測：降序得到「新司機, 高分司機, 低分司機」）。
+      sorter: (a: Driver, b: Driver, sortOrder?: SortOrder) => {
+        const sink = sortOrder === 'descend' ? -1 : 1; // 讓「沒評分」永遠沉底
         if (a.RatingCount === 0 && b.RatingCount === 0) return 0;
-        if (a.RatingCount === 0) return 1;
-        if (b.RatingCount === 0) return -1;
+        if (a.RatingCount === 0) return sink;
+        if (b.RatingCount === 0) return -sink;
         return a.RatingAvg - b.RatingAvg;
       },
       render: (_: unknown, driver: Driver) =>