diff --git a/frontend/src/pages/login/LoginFooter.tsx b/frontend/src/pages/login/LoginFooter.tsx
new file mode 100644
index 0000000..b82f2de
--- /dev/null
+++ b/frontend/src/pages/login/LoginFooter.tsx
@@ -0,0 +1,9 @@
+export default function LoginFooter() {
+  return (
+    <div className="login-foot" data-testid="login-footer">
+      🛠 ©Copyright Antler Software | 印刷智慧工厂 | 印刷MES | 印刷ERP | 印刷电商平台 |
+      文件智能处理 | 印前自动化 | 400-880-6237
+      <span style={{ marginLeft: 6 }}>沪ICP备14034791号-1</span>
+    </div>
+  );
+}
diff --git a/frontend/src/pages/login/LoginForm.tsx b/frontend/src/pages/login/LoginForm.tsx
new file mode 100644
index 0000000..b8c2347
--- /dev/null
+++ b/frontend/src/pages/login/LoginForm.tsx
@@ -0,0 +1,97 @@
+import { useEffect } from 'react';
+import { Form, Input, Select, Button, Alert } from 'antd';
+import type { LoginReq } from '../../api/auth';
+import { COMPANY_OPTIONS } from './loginConstants';
+
+export interface LoginFormFieldErrors {
+  username?: string;
+  password?: string;
+  companyCode?: string;
+}
+
+interface Props {
+  onSubmit: (req: LoginReq) => Promise<void>;
+  loading: boolean;
+  errorMessage: string | null;
+  fieldErrors: LoginFormFieldErrors;
+}
+
+export default function LoginForm({ onSubmit, loading, errorMessage, fieldErrors }: Props) {
+  const [form] = Form.useForm<LoginReq>();
+
+  useEffect(() => {
+    // 字段级错误同步到 AntD Form 实例
+    const errs: Array<{ name: keyof LoginFormFieldErrors; errors: string[] }> = [];
+    (['username', 'password', 'companyCode'] as const).forEach((k) => {
+      if (fieldErrors[k]) errs.push({ name: k, errors: [fieldErrors[k]!] });
+    });
+    if (errs.length > 0) {
+      form.setFields(errs as any);
+    }
+  }, [fieldErrors, form]);
+
+  const handleFinish = async (values: LoginReq) => {
+    await onSubmit(values);
+  };
+
+  return (
+    <Form
+      form={form}
+      layout="vertical"
+      onFinish={handleFinish}
+      initialValues={{ companyCode: 'HQ' }}
+      data-testid="login-form"
+    >
+      {errorMessage && (
+        <Alert
+          type="error"
+          message={errorMessage}
+          showIcon
+          style={{ marginBottom: 16 }}
+          data-testid="login-error-alert"
+        />
+      )}
+
+      <Form.Item
+        name="username"
+        rules={[{ required: true, message: '请输入用户名' }]}
+      >
+        <Input
+          placeholder="请输入你的用户名"
+          disabled={loading}
+          autoComplete="username"
+        />
+      </Form.Item>
+
+      <Form.Item
+        name="password"
+        rules={[{ required: true, message: '请输入密码' }]}
+      >
+        <Input.Password
+          placeholder="请输入你的密码"
+          disabled={loading}
+          autoComplete="current-password"
+        />
+      </Form.Item>
+
+      <Form.Item
+        name="companyCode"
+        rules={[{ required: true, message: '请选择公司' }]}
+      >
+        <Select options={COMPANY_OPTIONS} disabled={loading} data-testid="company-select" />
+      </Form.Item>
+
+      <Form.Item>
+        <Button
+          type="primary"
+          htmlType="submit"
+          block
+          loading={loading}
+          data-testid="login-submit"
+        >
+          {loading ? '登录中...' : '登 录'}
+        </Button>
+      </Form.Item>
+    </Form>
+  );
+}
diff --git a/frontend/src/pages/login/LoginHero.tsx b/frontend/src/pages/login/LoginHero.tsx
new file mode 100644
index 0000000..83abfbc
--- /dev/null
+++ b/frontend/src/pages/login/LoginHero.tsx
@@ -0,0 +1,11 @@
+export default function LoginHero() {
+  return (
+    <div className="login-hero" data-testid="login-hero">
+      <div className="login-text">
+        <div className="en">Enterprise Business Capability</div>
+        <div className="zh">企业业务能力平台</div>
+        <div className="erp">ERP</div>
+      </div>
+    </div>
+  );
+}
diff --git a/frontend/src/pages/login/LoginPage.test.tsx b/frontend/src/pages/login/LoginPage.test.tsx
new file mode 100644
index 0000000..3f252a4
--- /dev/null
+++ b/frontend/src/pages/login/LoginPage.test.tsx
@@ -0,0 +1,92 @@
+import { describe, it, expect, vi } from 'vitest';
+import { render, screen, fireEvent, waitFor } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { MemoryRouter, Routes, Route } from 'react-router-dom';
+import { Provider } from 'react-redux';
+import { configureStore } from '@reduxjs/toolkit';
+import { ConfigProvider } from 'antd';
+import authReducer from '../../store/slices/authSlice';
+import LoginPage from './LoginPage';
+
+function makeStore() {
+  return configureStore({ reducer: { auth: authReducer } });
+}
+
+function renderLogin() {
+  const store = makeStore();
+  return {
+    store,
+    ...render(
+      <Provider store={store}>
+        <ConfigProvider>
+          <MemoryRouter initialEntries={['/login']}>
+            <Routes>
+              <Route path="/login" element={<LoginPage />} />
+              <Route path="/users" element={<div data-testid="users-page">USERS</div>} />
+            </Routes>
+          </MemoryRouter>
+        </ConfigProvider>
+      </Provider>,
+    ),
+  };
+}
+
+async function fillAndSubmit(username: string, password: string, companyCode: string = 'HQ') {
+  const user = userEvent.setup();
+  const inputs = screen.getAllByRole('textbox'); // username + password 在 antd Input.Password 渲染下不是 textbox
+  // 直接通过 placeholder 找
+  await user.clear(screen.getByPlaceholderText('请输入你的用户名'));
+  await user.type(screen.getByPlaceholderText('请输入你的用户名'), username);
+  await user.clear(screen.getByPlaceholderText('请输入你的密码'));
+  await user.type(screen.getByPlaceholderText('请输入你的密码'), password);
+  // companyCode 默认已选 HQ，若需改动通过 AntD Select 较复杂，本测试用默认值
+  if (companyCode !== 'HQ') {
+    // 跳过非默认场景的 UI 选择（依赖原生 Select 行为太复杂）
+  }
+  await user.click(screen.getByTestId('login-submit'));
+}
+
+describe('LoginPage', () => {
+  it('renders login page with form', () => {
+    renderLogin();
+    expect(screen.getByText('用户登录')).toBeInTheDocument();
+    expect(screen.getByTestId('login-form')).toBeInTheDocument();
+    expect(screen.getByTestId('login-submit')).toBeInTheDocument();
+  });
+
+  it('success flow: dispatches setSession and navigates to /users', async () => {
+    const { store } = renderLogin();
+    await fillAndSubmit('alice', 'Password1!');
+    await waitFor(() => expect(screen.queryByTestId('users-page')).toBeInTheDocument(), {
+      timeout: 3000,
+    });
+    expect(store.getState().auth.accessToken).toBe('fake-jwt');
+    expect(store.getState().auth.userInfo?.username).toBe('alice');
+  });
+
+  it('bad credentials: shows 40101 error message', async () => {
+    renderLogin();
+    await fillAndSubmit('alice', 'WRONG');
+    await waitFor(() =>
+      expect(screen.getByText('用户名或密码错误')).toBeInTheDocument(),
+    );
+  });
+
+  it('locked account: shows 42301 with lockUntil time', async () => {
+    renderLogin();
+    await fillAndSubmit('locked', 'X');
+    await waitFor(() => {
+      const alert = screen.getByTestId('login-error-alert');
+      expect(alert.textContent).toMatch(/账号已锁定/);
+      expect(alert.textContent).toMatch(/12:00/);
+    });
+  });
+
+  it('deleted account: shows 40103 message', async () => {
+    renderLogin();
+    await fillAndSubmit('deleted', 'X');
+    await waitFor(() =>
+      expect(screen.getByText('账号已被作废，禁止登录')).toBeInTheDocument(),
+    );
+  });
+});
diff --git a/frontend/src/pages/login/LoginPage.tsx b/frontend/src/pages/login/LoginPage.tsx
index aac192d..34e5555 100644
--- a/frontend/src/pages/login/LoginPage.tsx
+++ b/frontend/src/pages/login/LoginPage.tsx
@@ -1,3 +1,94 @@
+import { useState } from 'react';
+import { useNavigate } from 'react-router-dom';
+import dayjs from 'dayjs';
+import { authApi } from '../../api/auth';
+import type { LoginReq } from '../../api/auth';
+import { BizError, isBizError } from '../../api/errors';
+import { useAppDispatch } from '../../store/hooks';
+import { setSession } from '../../store/slices/authSlice';
+import { ERROR_MESSAGES } from './loginConstants';
+import LoginForm, { LoginFormFieldErrors } from './LoginForm';
+import LoginHero from './LoginHero';
+import LoginFooter from './LoginFooter';
+
 export default function LoginPage() {
-  return <div data-testid="login-page-placeholder">login placeholder</div>;
+  const dispatch = useAppDispatch();
+  const navigate = useNavigate();
+
+  const [loading, setLoading] = useState(false);
+  const [errorMessage, setErrorMessage] = useState<string | null>(null);
+  const [fieldErrors, setFieldErrors] = useState<LoginFormFieldErrors>({});
+
+  const handleSubmit = async (req: LoginReq) => {
+    setLoading(true);
+    setErrorMessage(null);
+    setFieldErrors({});
+
+    try {
+      const vo = await authApi.login(req);
+      dispatch(setSession({ accessToken: vo.accessToken, userInfo: vo.userInfo }));
+      navigate('/users', { replace: true });
+    } catch (e) {
+      if (isBizError(e)) {
+        handleBizError(e);
+      } else {
+        setErrorMessage(ERROR_MESSAGES.UNKNOWN as string);
+      }
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const handleBizError = (e: BizError) => {
+    if (e.code === 42301) {
+      const data = e.data as { lockUntil?: string } | undefined;
+      const lockTime = data?.lockUntil ? dayjs(data.lockUntil).format('HH:mm') : '稍后';
+      setErrorMessage((ERROR_MESSAGES[42301] as string).replace('{lockUntil}', lockTime));
+    } else if (e.code === 40004) {
+      setFieldErrors({ companyCode: ERROR_MESSAGES[40004] as string });
+    } else if (e.code === 40103) {
+      setErrorMessage(ERROR_MESSAGES[40103] as string);
+    } else if (e.code === 40101) {
+      setErrorMessage(ERROR_MESSAGES[40101] as string);
+    } else if (e.code === 40001) {
+      setErrorMessage(e.message || (ERROR_MESSAGES[40001] as string));
+    } else if (e.code === -1 && e.message === 'NETWORK') {
+      setErrorMessage(ERROR_MESSAGES.NETWORK as string);
+    } else {
+      setErrorMessage(e.message || (ERROR_MESSAGES.UNKNOWN as string));
+    }
+  };
+
+  return (
+    <div className="login-wrap" data-testid="login-page">
+      <div className="login-head">
+        <span className="name">Antler ERP</span>
+        <span className="sub">欢迎登录EBC平台</span>
+      </div>
+      <div
+        className="login-body"
+        style={{ display: 'flex', gap: 32, padding: 24 }}
+      >
+        <LoginHero />
+        <div
+          className="login-card"
+          style={{
+            width: 360,
+            padding: 24,
+            background: 'var(--color-form-bg-edit)',
+            borderRadius: 8,
+          }}
+        >
+          <h3>用户登录</h3>
+          <LoginForm
+            onSubmit={handleSubmit}
+            loading={loading}
+            errorMessage={errorMessage}
+            fieldErrors={fieldErrors}
+          />
+        </div>
+      </div>
+      <LoginFooter />
+    </div>
+  );
 }
diff --git a/frontend/src/pages/login/loginConstants.ts b/frontend/src/pages/login/loginConstants.ts
new file mode 100644
index 0000000..478ee4b
--- /dev/null
+++ b/frontend/src/pages/login/loginConstants.ts
@@ -0,0 +1,11 @@
+export const COMPANY_OPTIONS = [{ value: 'HQ', label: '总部' }];
+
+export const ERROR_MESSAGES: Record<number | string, string> = {
+  40001: '请检查字段格式',
+  40004: '公司不存在或已删除',
+  40101: '用户名或密码错误',
+  40103: '账号已被作废，禁止登录',
+  42301: '账号已锁定，请于 {lockUntil} 后再试',
+  NETWORK: '网络异常，请检查连接后重试',
+  UNKNOWN: '登录失败，请稍后重试',
+};
diff --git a/frontend/src/test-utils/setup.ts b/frontend/src/test-utils/setup.ts
index 3c7efff..0969080 100644
--- a/frontend/src/test-utils/setup.ts
+++ b/frontend/src/test-utils/setup.ts
@@ -1,8 +1,31 @@
 import '@testing-library/jest-dom/vitest';
-import { afterAll, afterEach, beforeAll } from 'vitest';
+import { afterAll, afterEach, beforeAll, vi } from 'vitest';
 import { setupServer } from 'msw/node';
 import { handlers } from './msw-handlers';
 
+// AntD Grid 在 jsdom 下需要 matchMedia polyfill
+Object.defineProperty(window, 'matchMedia', {
+  writable: true,
+  value: vi.fn().mockImplementation((query: string) => ({
+    matches: false,
+    media: query,
+    onchange: null,
+    addListener: vi.fn(),
+    removeListener: vi.fn(),
+    addEventListener: vi.fn(),
+    removeEventListener: vi.fn(),
+    dispatchEvent: vi.fn(),
+  })),
+});
+
+// AntD 用到 ResizeObserver
+class ResizeObserverPolyfill {
+  observe() {}
+  unobserve() {}
+  disconnect() {}
+}
+(window as any).ResizeObserver = (window as any).ResizeObserver ?? ResizeObserverPolyfill;
+
 export const server = setupServer(...handlers);
 
 beforeAll(() => server.listen({ onUnhandledRequest: 'error' }));