diff --git a/remote_judger/src/providers/uoj.ts b/remote_judger/src/providers/uoj.ts
new file mode 100644
index 0000000..662dd05
--- /dev/null
+++ b/remote_judger/src/providers/uoj.ts
@@ -0,0 +1,252 @@
+import { JSDOM } from 'jsdom';
+import superagent from 'superagent';
+import proxy from 'superagent-proxy';
+import Logger from '../utils/logger';
+import { IBasicProvider, RemoteAccount } from '../interface';
+import { parseTimeMS, parseMemoryMB } from '../utils/parse';
+import sleep from '../utils/sleep';
+
+proxy(superagent);
+const logger = new Logger('remote/uoj');
+
+const langs_map = {
+  C: {
+    name: 'C',
+    id: 'C',
+    comment: '//',
+  },
+  'C++03': {
+    name: 'C++ 03',
+    id: 'C++',
+    comment: '//',
+  },
+  'C++11': {
+    name: 'C++ 11',
+    id: 'C++11',
+    comment: '//',
+  },
+  'C++': {
+    name: 'C++ 14',
+    id: 'C++14',
+    comment: '//',
+  },
+  'C++17': {
+    name: 'C++ 17',
+    id: 'C++17',
+    comment: '//',
+  },
+  'C++20': {
+    name: 'C++ 20',
+    id: 'C++20',
+    comment: '//',
+  },
+  'Python2.7': {
+    name: 'Python 2.7',
+    id: 'Python2.7',
+    comment: '#',
+  },
+  Python3: {
+    name: 'Python 3',
+    id: 'Python3',
+    comment: '#',
+  },
+  Java8: {
+    name: 'Java 8',
+    id: 'Java8',
+    comment: '//',
+  },
+  Java11: {
+    name: 'Java 11',
+    id: 'Java11',
+    comment: '//',
+  },
+  Java17: {
+    name: 'Java 17',
+    id: 'Java17',
+    comment: '//',
+  },
+  Pascal: {
+    name: 'Pascal',
+    id: 'Pascal',
+    comment: '//',
+  },
+};
+
+export function getAccountInfoFromEnv(): RemoteAccount | null {
+  const {
+    UOJ_HANDLE,
+    UOJ_PASSWORD,
+    UOJ_ENDPOINT = 'https://uoj.ac',
+    UOJ_PROXY,
+  } = process.env;
+
+  if (!UOJ_HANDLE || !UOJ_PASSWORD) return null;
+
+  const account: RemoteAccount = {
+    type: 'codeforces',
+    handle: UOJ_HANDLE,
+    password: UOJ_PASSWORD,
+    endpoint: UOJ_ENDPOINT,
+  };
+
+  if (UOJ_PROXY) account.proxy = UOJ_PROXY;
+
+  return account;
+}
+
+export default class UOJProvider implements IBasicProvider {
+  constructor(public account: RemoteAccount) {
+    if (account.cookie) this.cookie = account.cookie;
+  }
+
+  cookie: string[] = [];
+  csrf: string;
+
+  get(url: string) {
+    logger.debug('get', url);
+    if (!url.includes('//'))
+      url = `${this.account.endpoint || 'https://uoj.ac'}${url}`;
+    const req = superagent.get(url).set('Cookie', this.cookie);
+    if (this.account.proxy) return req.proxy(this.account.proxy);
+    return req;
+  }
+
+  post(url: string) {
+    logger.debug('post', url, this.cookie);
+    if (!url.includes('//'))
+      url = `${this.account.endpoint || 'https://uoj.ac'}${url}`;
+    const req = superagent.post(url).set('Cookie', this.cookie).type('form');
+    if (this.account.proxy) return req.proxy(this.account.proxy);
+    return req;
+  }
+
+  async getCsrfToken(url: string) {
+    const { text: html, header } = await this.get(url);
+    if (header['set-cookie']) {
+      this.cookie = header['set-cookie'];
+    }
+    let value = /_token *: *"(.+?)"/g.exec(html);
+    if (value) return value[1];
+    value = /_token" value="(.+?)"/g.exec(html);
+    return value?.[1];
+  }
+
+  get loggedIn() {
+    return this.get('/login').then(
+      ({ text: html }) => !html.includes('<title>登录')
+    );
+  }
+
+  async ensureLogin() {
+    if (await this.loggedIn) return true;
+    logger.info('retry login');
+    const _token = await this.getCsrfToken('/login');
+    const { header, text } = await this.post('/login').send({
+      _token,
+      login: '',
+      username: this.account.handle,
+      // NOTE: you should pass a pre-hashed key!
+      password: this.account.password,
+    });
+    if (header['set-cookie'] && this.cookie.length === 1) {
+      header['set-cookie'].push(...this.cookie);
+      this.cookie = header['set-cookie'];
+    }
+    if (text === 'ok') return true;
+    return text;
+  }
+
+  async submitProblem(id: string, lang: string, code: string, info) {
+    const programType = langs_map[lang] || langs_map['C++'];
+    const comment = programType.comment;
+
+    if (comment) {
+      const msg = `S2OJ Submission #${info.rid} @ ${new Date().getTime()}`;
+      if (typeof comment === 'string') code = `${comment} ${msg}\n${code}`;
+      else if (comment instanceof Array)
+        code = `${comment[0]} ${msg} ${comment[1]}\n${code}`;
+    }
+
+    const _token = await this.getCsrfToken(`/problem/${id}`);
+    const { text } = await this.post(`/problem/${id}`).send({
+      _token,
+      answer_answer_language: programType.id,
+      answer_answer_upload_type: 'editor',
+      answer_answer_editor: code,
+      'submit-answer': 'answer',
+    });
+
+    if (!text.includes('我的提交记录')) throw new Error('Submit failed');
+
+    const { text: status } = await this.get(
+      `/submissions?problem_id=${id}&submitter=${this.account.handle}`
+    );
+
+    const $dom = new JSDOM(status);
+    return $dom.window.document
+      .querySelector('tbody>tr>td>a')
+      .innerHTML.split('#')[1];
+  }
+
+  async waitForSubmission(problem_id: string, id: string, next, end) {
+    let i = 0;
+
+    while (true) {
+      if (++i > 60) {
+        return await end({
+          id,
+          error: true,
+          status: 'Judgment Failed',
+          message: 'Failed to fetch submission details.',
+        });
+      }
+
+      await sleep(2000);
+      const { text } = await this.get(`/submission/${id}`);
+      const {
+        window: { document },
+      } = new JSDOM(text);
+      const find = (content: string) =>
+        Array.from(
+          document.querySelectorAll('.panel-heading>.panel-title')
+        ).find(n => n.innerHTML === content).parentElement.parentElement
+          .children[1];
+      if (text.includes('Compile Error')) {
+        return await end({
+          error: true,
+          id,
+          status: 'Compile Error',
+          message: find('详细').children[0].innerHTML,
+        });
+      }
+
+      await next({});
+
+      const summary = document.querySelector('tbody>tr');
+      if (!summary) continue;
+      const time = parseTimeMS(summary.children[4].innerHTML);
+      const memory = parseMemoryMB(summary.children[5].innerHTML) * 1024;
+      let panel = document.getElementById(
+        'details_details_accordion_collapse_subtask_1'
+      );
+      if (!panel) {
+        panel = document.getElementById('details_details_accordion');
+        if (!panel) continue;
+      }
+
+      if (document.querySelector('tbody').innerHTML.includes('Judging'))
+        continue;
+
+      const score = +summary.children[3]?.children[0]?.innerHTML || 0;
+      const status = score === 100 ? 'Accepted' : 'Unaccepted';
+
+      return await end({
+        id,
+        status,
+        score,
+        time,
+        memory,
+      });
+    }
+  }
+}
diff --git a/remote_judger/src/utils/parse.ts b/remote_judger/src/utils/parse.ts
new file mode 100644
index 0000000..e79e3c9
--- /dev/null
+++ b/remote_judger/src/utils/parse.ts
@@ -0,0 +1,20 @@
+const TIME_RE = /^([0-9]+(?:\.[0-9]*)?)([mu]?)s?$/i;
+const TIME_UNITS = { '': 1000, m: 1, u: 0.001 };
+const MEMORY_RE = /^([0-9]+(?:\.[0-9]*)?)([kmg])b?$/i;
+const MEMORY_UNITS = { k: 1 / 1024, m: 1, g: 1024 };
+
+export function parseTimeMS(str: string | number, throwOnError = true) {
+  if (typeof str === 'number' || Number.isSafeInteger(+str)) return +str;
+  const match = TIME_RE.exec(str);
+  if (!match && throwOnError) throw new Error(`${str} error parsing time`);
+  if (!match) return 1000;
+  return Math.floor(parseFloat(match[1]) * TIME_UNITS[match[2].toLowerCase()]);
+}
+
+export function parseMemoryMB(str: string | number, throwOnError = true) {
+  if (typeof str === 'number' || Number.isSafeInteger(+str)) return +str;
+  const match = MEMORY_RE.exec(str);
+  if (!match && throwOnError) throw new Error(`${str} error parsing memory`);
+  if (!match) return 256;
+  return Math.ceil(parseFloat(match[1]) * MEMORY_UNITS[match[2].toLowerCase()]);
+}
diff --git a/remote_judger/src/vjudge.ts b/remote_judger/src/vjudge.ts
index b2f3e3a..b18e6b0 100644
--- a/remote_judger/src/vjudge.ts
+++ b/remote_judger/src/vjudge.ts
@@ -31,7 +31,9 @@ class AccountService {
         'update-status': true,
         fetch_new: false,
         id,
-        status: `Judging Test #${payload.test_id}`,
+        status:
+          payload.status ||
+          (payload.test_id ? `Judging Test #${payload.test_id}` : 'Judging'),
       });
     };
 
@@ -151,6 +153,7 @@ export async function apply(request: any) {
 
   await vjudge.addProvider('codeforces');
   await vjudge.addProvider('atcoder');
+  await vjudge.addProvider('uoj');
 
   return vjudge;
 }
diff --git a/web/app/models/UOJRemoteProblem.php b/web/app/models/UOJRemoteProblem.php
index 872368c..c3cd1b4 100644
--- a/web/app/models/UOJRemoteProblem.php
+++ b/web/app/models/UOJRemoteProblem.php
@@ -30,7 +30,7 @@ class UOJRemoteProblem {
 			'not_exist_texts' => [
 				'未找到该页面',
 			],
-			'languages' => ['C', 'C++03', 'C++11', 'C++14', 'C++17', 'C++20', 'Python3', 'Python2.7', 'Java8', 'Java11', 'Java17', 'Pascal'],
+			'languages' => ['C', 'C++03', 'C++11', 'C++', 'C++17', 'C++20', 'Python3', 'Python2.7', 'Java8', 'Java11', 'Java17', 'Pascal'],
 		],
 	];