diff --git a/frontend/tests/unit/LoginPage.success.test.tsx b/frontend/tests/unit/LoginPage.success.test.tsx
new file mode 100644
index 0000000..7308646
--- /dev/null
+++ b/frontend/tests/unit/LoginPage.success.test.tsx
@@ -0,0 +1,78 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+import { screen, waitFor } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+
+// 捕获 navigate 调用
+const navigateSpy = vi.fn();
+vi.mock('react-router-dom', async () => {
+  const actual = await vi.importActual<typeof import('react-router-dom')>('react-router-dom');
+  return { ...actual, useNavigate: () => navigateSpy };
+});
+
+// 捕获 message 调用：保留 antd 其余真实导出，仅桩 App.useApp 返回的 message
+const messageSpy = { success: vi.fn(), error: vi.fn() };
+vi.mock('antd', async () => {
+  const actual = await vi.importActual<typeof import('antd')>('antd');
+  return {
+    ...actual,
+    App: Object.assign(actual.App, { useApp: () => ({ message: messageSpy }) }),
+  };
+});
+
+vi.mock('../../src/api/usrApi', () => ({
+  fetchCompanies: vi.fn(),
+  login: vi.fn(),
+}));
+
+import { fetchCompanies, login } from '../../src/api/usrApi';
+import LoginPage from '../../src/pages/usr/Login/LoginPage';
+import { TOKEN_STORAGE_KEY } from '../../src/api/request';
+import { renderWithProviders } from './renderLogin';
+
+const mockedFetch = fetchCompanies as unknown as ReturnType<typeof vi.fn>;
+const mockedLogin = login as unknown as ReturnType<typeof vi.fn>;
+
+describe('LoginPage 登录成功', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+    localStorage.clear();
+    mockedFetch.mockResolvedValue([{ id: 1, sCompanyName: '甲公司', sVersion: '标准版' }]);
+  });
+
+  async function submitLogin() {
+    const user = userEvent.setup();
+    await user.type(screen.getByPlaceholderText('请输入你的用户名'), 'admin');
+    await user.type(screen.getByPlaceholderText('请输入你的密码'), 'secret');
+    await user.click(screen.getByRole('button', { name: /登\s*录/ }));
+  }
+
+  it('dispatches setCredentials and persists token on success', async () => {
+    mockedLogin.mockResolvedValue({
+      token: 'tk',
+      user: { id: 1, sUserName: 'admin', sUserType: '超级管理员', sLanguage: '中文' },
+    });
+    const { getState } = renderWithProviders(<LoginPage />);
+    expect(await screen.findByText('甲公司（标准版）')).toBeInTheDocument();
+    await submitLogin();
+    await waitFor(() => expect(getState().auth.token).toBe('tk'));
+    expect(getState().auth.user).toEqual({
+      id: 1,
+      sUserName: 'admin',
+      sUserType: '超级管理员',
+      sLanguage: '中文',
+    });
+    expect(localStorage.getItem(TOKEN_STORAGE_KEY)).toBe('tk');
+  });
+
+  it('shows success message and navigates to / with replace', async () => {
+    mockedLogin.mockResolvedValue({
+      token: 'tk',
+      user: { id: 1, sUserName: 'admin', sUserType: '超级管理员', sLanguage: '中文' },
+    });
+    renderWithProviders(<LoginPage />);
+    expect(await screen.findByText('甲公司（标准版）')).toBeInTheDocument();
+    await submitLogin();
+    await waitFor(() => expect(messageSpy.success).toHaveBeenCalledWith('登录成功'));
+    expect(navigateSpy).toHaveBeenCalledWith('/', { replace: true });
+  });
+});