diff --git a/app/api_router.js b/app/api_router.js
new file mode 100644
index 00000000..c19a55dc
--- /dev/null
+++ b/app/api_router.js
@@ -0,0 +1,59 @@
+'use strict';
+
+module.exports = function(app) {
+  const { router, controller, config } = app;
+  const { topic, topicCollect, user, toolsController,
+    reply, message } = controller.v1;
+
+  // Open API
+  var topic   = require('./api/v1/topic');
+  var topicCollectController = require('./api/v1/topic_collect');
+  var userController    = require('./api/v1/user');
+  var toolsController   = require('./api/v1/tools');
+  var replyController   = require('./api/v1/reply');
+  var messageController = require('./api/v1/message');
+  var middleware        = require('./api/v1/middleware');
+
+  var limit             = require('./middlewares/limit');
+
+  // 主题
+  router.get('/api/v1/topics', topic.index);
+  router.get('/api/v1/topic/:id', middleware.tryAuth, topic.show);
+  router.post('/api/v1/topics', middleware.auth,
+    limit.peruserperday('create_topic', config.create_post_per_day,
+      {showJson: true}), topic.create);
+  router.post('/api/v1/topics/update', middleware.auth,
+    topic.update);
+
+  // 主题收藏
+  router.post('/api/v1/topic_collect/collect', middleware.auth,
+    topicCollectController.collect); // 关注某话题
+  router.post('/api/v1/topic_collect/de_collect', middleware.auth,
+    topicCollectController.de_collect); // 取消关注某话题
+  router.get('/api/v1/topic_collect/:loginname',
+    topicCollectController.list);
+
+  // 用户
+  router.get('/api/v1/user/:loginname', userController.show);
+
+  // accessToken 测试
+  router.post('/api/v1/accesstoken', middleware.auth,
+    toolsController.accesstoken);
+
+  // 评论
+  router.post('/api/v1/topic/:topic_id/replies', middleware.auth,
+    limit.peruserperday('create_reply', config.create_reply_per_day,
+      {showJson: true}), replyController.create);
+  router.post('/api/v1/reply/:reply_id/ups', middleware.auth,
+    replyController.ups);
+
+  // 通知
+  router.get('/api/v1/messages', middleware.auth,
+    messageController.index);
+  router.get('/api/v1/message/count', middleware.auth,
+    messageController.count);
+  router.post('/api/v1/message/mark_all', middleware.auth,
+    messageController.markAll);
+  router.post('/api/v1/message/mark_one/:msg_id', middleware.auth,
+    messageController.markOne);
+};
diff --git a/app/controller/v1/topic.js b/app/controller/v1/topic.js
new file mode 100644
index 00000000..dca37456
--- /dev/null
+++ b/app/controller/v1/topic.js
@@ -0,0 +1,235 @@
+'use strict';
+
+var eventproxy   = require('eventproxy');
+var _            = require('lodash');
+var at           = require('../../common/at');
+var renderHelper = require('../../common/render_helper');
+var validator    = require('validator');
+
+class TopicController extends Controller {
+  async index() {
+    const { ctx, service, config } = this;
+    var page = parseInt(ctx.query.page, 10) || 1;
+    page = page > 0 ? page : 1;
+    var tab = ctx.query.tab || 'all';
+    var limit    = Number(ctx.query.limit) || config.list_topic_count;
+    var mdrender = ctx.query.mdrender === 'false' ? false : true;
+
+    var query = {};
+    if (!tab || tab === 'all') {
+      query.tab = {$nin: ['job', 'dev']}
+    } else {
+      if (tab === 'good') {
+        query.good = true;
+      } else {
+        query.tab = tab;
+      }
+    }
+    query.deleted = false;
+    var options = {
+      skip: (page - 1) * limit,
+      limit: limit,
+      sort: '-top -last_reply_at',
+    };
+
+    const topics = await service.topic.find(query, '', options);
+    service.user.findById
+    ep.all('topics', function (topics) {
+      topics.forEach(function (topic) {
+        UserModel.findById(topic.author_id, ep.done(function (author) {
+          if (mdrender) {
+            topic.content = renderHelper.markdown(at.linkUsers(topic.content));
+          }
+          topic.author = _.pick(author, ['loginname', 'avatar_url']);
+          ep.emit('author');
+        }));
+      });
+
+      ep.after('author', topics.length, function () {
+        topics = topics.map(function (topic) {
+          return _.pick(topic, ['id', 'author_id', 'tab', 'content', 'title', 'last_reply_at',
+            'good', 'top', 'reply_count', 'visit_count', 'create_at', 'author']);
+        });
+
+        res.send({success: true, data: topics});
+      });
+    });
+  }
+
+var show = function (req, res, next) {
+  var topicId  = String(req.params.id);
+
+  var mdrender = req.query.mdrender === 'false' ? false : true;
+  var ep       = new eventproxy();
+
+  if (!validator.isMongoId(topicId)) {
+    res.status(400);
+    return res.send({success: false, error_msg: '不是有效的话题id'});
+  }
+
+  ep.fail(next);
+
+  TopicProxy.getFullTopic(topicId, ep.done(function (msg, topic, author, replies) {
+    if (!topic) {
+      res.status(404);
+      return res.send({success: false, error_msg: '话题不存在'});
+    }
+    topic = _.pick(topic, ['id', 'author_id', 'tab', 'content', 'title', 'last_reply_at',
+      'good', 'top', 'reply_count', 'visit_count', 'create_at', 'author']);
+
+    if (mdrender) {
+      topic.content = renderHelper.markdown(at.linkUsers(topic.content));
+    }
+    topic.author = _.pick(author, ['loginname', 'avatar_url']);
+
+    topic.replies = replies.map(function (reply) {
+      if (mdrender) {
+        reply.content = renderHelper.markdown(at.linkUsers(reply.content));
+      }
+      reply.author = _.pick(reply.author, ['loginname', 'avatar_url']);
+      reply =  _.pick(reply, ['id', 'author', 'content', 'ups', 'create_at', 'reply_id']);
+      reply.reply_id = reply.reply_id || null;
+
+      if (reply.ups && req.user && reply.ups.indexOf(req.user._id) != -1) {
+        reply.is_uped = true;
+      } else {
+        reply.is_uped = false;
+      }
+
+      return reply;
+    });
+
+    ep.emit('full_topic', topic)
+  }));
+
+
+  if (!req.user) {
+    ep.emitLater('is_collect', null)
+  } else {
+    TopicCollect.getTopicCollect(req.user._id, topicId, ep.done('is_collect'))
+  }
+
+  ep.all('full_topic', 'is_collect', function (full_topic, is_collect) {
+    full_topic.is_collect = !!is_collect;
+
+    res.send({success: true, data: full_topic});
+  })
+
+};
+
+exports.show = show;
+
+var create = function (req, res, next) {
+  var title   = validator.trim(req.body.title || '');
+  var tab     = validator.trim(req.body.tab || '');
+  var content = validator.trim(req.body.content || '');
+
+  // 得到所有的 tab, e.g. ['ask', 'share', ..]
+  var allTabs = config.tabs.map(function (tPair) {
+    return tPair[0];
+  });
+
+  // 验证
+  var editError;
+  if (title === '') {
+    editError = '标题不能为空';
+  } else if (title.length < 5 || title.length > 100) {
+    editError = '标题字数太多或太少';
+  } else if (!tab || !_.includes(allTabs, tab)) {
+    editError = '必须选择一个版块';
+  } else if (content === '') {
+    editError = '内容不可为空';
+  }
+  // END 验证
+
+  if (editError) {
+    res.status(400);
+    return res.send({success: false, error_msg: editError});
+  }
+
+  TopicProxy.newAndSave(title, content, tab, req.user.id, function (err, topic) {
+    if (err) {
+      return next(err);
+    }
+
+    var proxy = new eventproxy();
+    proxy.fail(next);
+
+    proxy.all('score_saved', function () {
+      res.send({
+        success: true,
+        topic_id: topic.id
+      });
+    });
+    UserProxy.getUserById(req.user.id, proxy.done(function (user) {
+      user.score += 5;
+      user.topic_count += 1;
+      user.save();
+      req.user = user;
+      proxy.emit('score_saved');
+    }));
+
+    //发送at消息
+    at.sendMessageToMentionUsers(content, topic.id, req.user.id);
+  });
+};
+
+exports.update = function (req, res, next) {
+  var topic_id = _.trim(req.body.topic_id);
+  var title    = _.trim(req.body.title);
+  var tab      = _.trim(req.body.tab);
+  var content  = _.trim(req.body.content);
+
+  // 得到所有的 tab, e.g. ['ask', 'share', ..]
+  var allTabs = config.tabs.map(function (tPair) {
+    return tPair[0];
+  });
+
+  TopicProxy.getTopicById(topic_id, function (err, topic, tags) {
+    if (!topic) {
+      res.status(400);
+      return res.send({success: false, error_msg: '此话题不存在或已被删除。'});
+    }
+
+    if (topic.author_id.equals(req.user._id) || req.user.is_admin) {
+      // 验证
+      var editError;
+      if (title === '') {
+        editError = '标题不能是空的。';
+      } else if (title.length < 5 || title.length > 100) {
+        editError = '标题字数太多或太少。';
+      } else if (!tab || !_.includes(allTabs, tab)) {
+        editError = '必须选择一个版块。';
+      }
+      // END 验证
+
+      if (editError) {
+        return res.send({success: false, error_msg: editError});
+      }
+
+      //保存话题
+      topic.title     = title;
+      topic.content   = content;
+      topic.tab       = tab;
+      topic.update_at = new Date();
+
+      topic.save(function (err) {
+        if (err) {
+          return next(err);
+        }
+        // 发送at消息
+        at.sendMessageToMentionUsers(content, topic._id, req.user._id);
+
+        res.send({
+          success: true,
+          topic_id: topic.id
+        });
+      });
+    } else {
+      res.status(403)
+      return res.send({success: false, error_msg: '对不起，你不能编辑此话题。'});
+    }
+  });
+}
+
+module.exports = TopicController;
diff --git a/app/router.js b/app/router.js
index 54f5be6e..cf957b2c 100644
--- a/app/router.js
+++ b/app/router.js
@@ -1,110 +1,12 @@
 'use strict';
 
+const web = require('./web_router');
+const api = require('./api_router');
+
 /**
  * @param {Egg.Application} app - egg application
  */
 module.exports = app => {
-  const { router, controller, config, middleware } = app;
-
-  const { site, sign, user, topic, rss,
-    search, page, reply, message } = controller;
-
-  const userRequired = middleware.userRequired();
-  const adminRequired = middleware.adminRequired();
-  const createTopicLimit = middleware.createTopicLimit(config.topic);
-  const createUserLimit = middleware.createUserLimit(config.create_user_per_ip);
-
-  // home page
-  router.get('/', site.index);
-  // sitemap
-  router.get('/sitemap.xml', site.sitemap);
-  // mobile app download
-  router.get('/app/download', site.appDownload);
-
-  // sign controller
-  if (config.allow_sign_up) {
-    // 跳转到注册页面
-    router.get('/signup', sign.showSignup);
-    // 提交注册信息
-    router.post('/signup', createUserLimit, sign.signup);
-  } else {
-    // 进行github验证
-    router.redirect('/singup', '/auth/github');
-  }
-
-  const localStrategy = app.passport.authenticate('local', {
-    successRedirect: '/',
-    failureRedirect: '/signin',
-  });
-
-  router.get('/signin', sign.showLogin); // 进入登录页面
-  router.post('/passport/local', localStrategy);
-  router.all('/signout', sign.signout); // 登出
-  router.get('/active_account', sign.activeAccount); // 帐号激活
-
-  // github oauth
-  app.passport.mount('github');
-
-  router.get('/search_pass', sign.showSearchPass); // 找回密码页面
-  router.post('/search_pass', sign.updateSearchPass); // 更新密码
-  router.get('/reset_pass', sign.resetPass); // 进入重置密码页面
-  router.post('/reset_pass', sign.updatePass); // 更新密码
-
-  // user controller
-  router.get('/user/:name', user.index); // 用户个人主页
-  router.get('/setting', userRequired, user.showSetting); // 用户个人设置页
-  router.post('/setting', userRequired, user.setting); // 提交个人信息设置
-  router.get('/stars', user.listStars); // 显示所有达人列表页
-  router.get('/users/top100', user.top100); // 显示积分前一百用户页
-  router.get('/user/:name/collections', user.listCollectedTopics); // 用户收藏的所有话题页
-  router.get('/user/:name/topics', user.listTopics); // 用户发布的所有话题页
-  router.get('/user/:name/replies', user.listReplies); // 用户参与的所有回复页
-  router.post('/user/set_star', adminRequired, user.toggleStar); // 把某用户设为达人
-  router.post('/user/cancel_star', adminRequired, user.toggleStar); // 取消某用户的达人身份
-  router.post('/user/:name/block', adminRequired, user.block); // 禁言某用户
-  router.post('/user/:name/delete_all', adminRequired, user.deleteAll); // 删除某用户所有发言
-
-  // message controler
-  router.get('/my/messages', userRequired, message.index); // 用户个人的所有消息页
-
-  // topic
-
-  // 新建文章界面
-  router.get('/topic/create', userRequired, topic.create);
-
-  router.get('/topic/:tid', topic.index); // 显示某个话题
-  router.post('/topic/:tid/top', adminRequired, topic.top); // 将某话题置顶
-  router.post('/topic/:tid/good', adminRequired, topic.good); // 将某话题加精
-  router.get('/topic/:tid/edit', userRequired, topic.showEdit); // 编辑某话题
-  router.post('/topic/:tid/lock', adminRequired, topic.lock); // 锁定主题，不能再回复
-
-  router.post('/topic/:tid/delete', userRequired, topic.delete);
-
-  // 保存新建的文章
-  router.post('/topic/create', userRequired, createTopicLimit, topic.put);
-
-  router.post('/topic/:tid/edit', userRequired, topic.update);
-  router.post('/topic/collect', userRequired, topic.collect); // 关注某话题
-  router.post('/topic/de_collect', userRequired, topic.de_collect); // 取消关注某话题
-
-  // reply controller
-  router.post('/:topic_id/reply', userRequired,
-    // limit.peruserperday('create_reply', config.create_reply_per_day, { showJson: false }),
-    reply.add); // 提交一级回复
-  router.get('/reply/:reply_id/edit', userRequired, reply.showEdit); // 修改自己的评论页
-  router.post('/reply/:reply_id/edit', userRequired, reply.update); // 修改某评论
-  router.post('/reply/:reply_id/delete', userRequired, reply.delete); // 删除某评论
-  router.post('/reply/:reply_id/up', userRequired, reply.up); // 为评论点赞
-  router.post('/upload', userRequired, topic.upload); // 上传图片
-  // static page
-  router.get('/about', page.about);
-  router.get('/faq', page.faq);
-  router.get('/getstart', page.getstart);
-  router.get('/robots.txt', page.robots);
-  router.get('/api', page.api);
-
-  // rss
-  router.get('/rss', rss.index);
-
-  router.get('/search', search.index);
+  web(app);
+  api(app);
 };
diff --git a/app/web_router.js b/app/web_router.js
new file mode 100644
index 00000000..61ed272c
--- /dev/null
+++ b/app/web_router.js
@@ -0,0 +1,107 @@
+'use strict';
+
+module.exports = function(app) {
+  const { router, controller, config, middleware } = app;
+
+  const { site, sign, user, topic, rss,
+    search, page, reply, message } = controller;
+
+  const userRequired = middleware.userRequired();
+  const adminRequired = middleware.adminRequired();
+  const createTopicLimit = middleware.createTopicLimit(config.topic);
+  const createUserLimit = middleware.createUserLimit(config.create_user_per_ip);
+
+  // home page
+  router.get('/', site.index);
+  // sitemap
+  router.get('/sitemap.xml', site.sitemap);
+  // mobile app download
+  router.get('/app/download', site.appDownload);
+
+  // sign controller
+  if (config.allow_sign_up) {
+    // 跳转到注册页面
+    router.get('/signup', sign.showSignup);
+    // 提交注册信息
+    router.post('/signup', createUserLimit, sign.signup);
+  } else {
+    // 进行github验证
+    router.redirect('/singup', '/auth/github');
+  }
+
+  const localStrategy = app.passport.authenticate('local', {
+    successRedirect: '/',
+    failureRedirect: '/signin',
+  });
+
+  router.get('/signin', sign.showLogin); // 进入登录页面
+  router.post('/passport/local', localStrategy);
+  router.all('/signout', sign.signout); // 登出
+  router.get('/active_account', sign.activeAccount); // 帐号激活
+
+  // github oauth
+  app.passport.mount('github');
+
+  router.get('/search_pass', sign.showSearchPass); // 找回密码页面
+  router.post('/search_pass', sign.updateSearchPass); // 更新密码
+  router.get('/reset_pass', sign.resetPass); // 进入重置密码页面
+  router.post('/reset_pass', sign.updatePass); // 更新密码
+
+  // user controller
+  router.get('/user/:name', user.index); // 用户个人主页
+  router.get('/setting', userRequired, user.showSetting); // 用户个人设置页
+  router.post('/setting', userRequired, user.setting); // 提交个人信息设置
+  router.get('/stars', user.listStars); // 显示所有达人列表页
+  router.get('/users/top100', user.top100); // 显示积分前一百用户页
+  router.get('/user/:name/collections', user.listCollectedTopics); // 用户收藏的所有话题页
+  router.get('/user/:name/topics', user.listTopics); // 用户发布的所有话题页
+  router.get('/user/:name/replies', user.listReplies); // 用户参与的所有回复页
+  router.post('/user/set_star', adminRequired, user.toggleStar); // 把某用户设为达人
+  router.post('/user/cancel_star', adminRequired, user.toggleStar); // 取消某用户的达人身份
+  router.post('/user/:name/block', adminRequired, user.block); // 禁言某用户
+  router.post('/user/:name/delete_all', adminRequired, user.deleteAll); // 删除某用户所有发言
+
+  // message controler
+  router.get('/my/messages', userRequired, message.index); // 用户个人的所有消息页
+
+  // topic
+
+  // 新建文章界面
+  router.get('/topic/create', userRequired, topic.create);
+
+  router.get('/topic/:tid', topic.index); // 显示某个话题
+  router.post('/topic/:tid/top', adminRequired, topic.top); // 将某话题置顶
+  router.post('/topic/:tid/good', adminRequired, topic.good); // 将某话题加精
+  router.get('/topic/:tid/edit', userRequired, topic.showEdit); // 编辑某话题
+  router.post('/topic/:tid/lock', adminRequired, topic.lock); // 锁定主题，不能再回复
+
+  router.post('/topic/:tid/delete', userRequired, topic.delete);
+
+  // 保存新建的文章
+  router.post('/topic/create', userRequired, createTopicLimit, topic.put);
+
+  router.post('/topic/:tid/edit', userRequired, topic.update);
+  router.post('/topic/collect', userRequired, topic.collect); // 关注某话题
+  router.post('/topic/de_collect', userRequired, topic.de_collect); // 取消关注某话题
+
+  // reply controller
+  router.post('/:topic_id/reply', userRequired,
+    // limit.peruserperday('create_reply', config.create_reply_per_day, { showJson: false }),
+    reply.add); // 提交一级回复
+  router.get('/reply/:reply_id/edit', userRequired, reply.showEdit); // 修改自己的评论页
+  router.post('/reply/:reply_id/edit', userRequired, reply.update); // 修改某评论
+  router.post('/reply/:reply_id/delete', userRequired, reply.delete); // 删除某评论
+  router.post('/reply/:reply_id/up', userRequired, reply.up); // 为评论点赞
+  router.post('/upload', userRequired, topic.upload); // 上传图片
+  // static page
+  router.get('/about', page.about);
+  router.get('/faq', page.faq);
+  router.get('/getstart', page.getstart);
+  router.get('/robots.txt', page.robots);
+  router.get('/api', page.api);
+
+  // rss
+  router.get('/rss', rss.index);
+
+  router.get('/search', search.index);
+};
diff --git a/config/config.default.js b/config/config.default.js
index 35d571a5..14a9cf07 100644
--- a/config/config.default.js
+++ b/config/config.default.js
@@ -23,7 +23,18 @@ module.exports = appInfo => {
   config.session_secret = 'node_club_secret'; // 务必修改
 
   // add your config here
-  config.middleware = [ 'locals', 'authUser', 'blockUser', 'errorPage' ];
+  config.middleware = [
+    'locals',
+    'authUser',
+    'blockUser',
+    'errorPage',
+    'cors',
+  ];
+
+  exports.cors = {
+    enable: true,
+    match: '/api/v1/',
+  };
 
   config.authUser = {
     enable: true,
diff --git a/config/plugin.js b/config/plugin.js
index f6e8c2fb..435e6ee5 100644
--- a/config/plugin.js
+++ b/config/plugin.js
@@ -43,3 +43,8 @@ exports.validate = {
   enable: true,
   package: 'egg-validate',
 };
+
+exports.cors = {
+  enable: true,
+  package: 'egg-cors',
+};
diff --git a/package.json b/package.json
index 4d922be8..3d9f5f8f 100644
--- a/package.json
+++ b/package.json
@@ -9,6 +9,7 @@
     "data2xml": "^1.2.5",
     "egg": "^2.2.1",
     "egg-alinode": "^2.0.1",
+    "egg-cors": "^2.0.0",
     "egg-mongoose": "^2.1.1",
     "egg-passport": "^2.0.1",
     "egg-passport-github": "^1.0.0",