diff --git a/README.md b/README.md
index 3b3083d..f655eea 100644
--- a/README.md
+++ b/README.md
@@ -2,20 +2,29 @@
 
 部门、成员、标签均可以在开发环境调试
 
-```
+```ruby
 gem "qy_wechat_api", git: "https://github.com/lanrion/qy_wechat_api.git"
 ```
 
-**暂未对access_token做缓存处理，为了确保在开发过程不会出现token过期问题，请确保不要使用全局变量做client**
+**暂未对access_token做缓存处理，为了确保在开发过程不会出现token过期问题，请确保不要使用全局变量做app_client变量。**
 
 ## 基本用法
+
 ```ruby
-client = QyWechatApi::Client.new(QyWechatApi.corpid, QyWechatApi.corpsecret)
+app_client = QyWechatApi::Client.new(corpid, corpsecret)
 
 # 创建自定义菜单
 # menu_json的生成方法请参考: https://github.com/lanrion/weixin_rails_middleware/wiki/DIY-menu
-client.menu.create(menu_json, agent_id)
+app_client.menu.create(menu_json, agent_id)
+
+# Oauth 用法
+# 先要配置你应用的 可信域名 2458023e.ngrok.com
+# state 为开发者自定义参数，可选
+app_client.oauth.authorize_url("http://2458023e.ngrok.com", "state")
 
+# 获取code后，获取用户信息
+# app_id: 跳转链接时所在的企业应用ID
+app_client.oauth.get_user_info("code", "app_id")
 ```
 
 
diff --git a/lib/qy_wechat_api.rb b/lib/qy_wechat_api.rb
index ef3f2ee..a4552c3 100644
--- a/lib/qy_wechat_api.rb
+++ b/lib/qy_wechat_api.rb
@@ -13,10 +13,12 @@ module QyWechatApi
   OK_CODE    = 0.freeze
 
   class << self
+    # for test
     def corpid
       "wxb9ce1d023fe6eb69"
     end
 
+    # for test
     def corpsecret
       "UOofFIah4PVLmkG8xMH3lpDxj6NTnQSKMrFt-HubiPB4kjB09EmTVcUjgNeermps"
     end
@@ -44,5 +46,10 @@ module QyWechatApi
       en_msg = result_hash.delete("errmsg")
       ResultHandler.new(code, en_msg, result_hash)
     end
+
+    def open_endpoint(url)
+      "https://open.weixin.qq.com#{url}"
+    end
+
   end
 end
diff --git a/lib/qy_wechat_api/api.rb b/lib/qy_wechat_api/api.rb
index b6eacb7..2eeddb4 100644
--- a/lib/qy_wechat_api/api.rb
+++ b/lib/qy_wechat_api/api.rb
@@ -5,3 +5,4 @@ require "qy_wechat_api/api/message"
 require "qy_wechat_api/api/tag"
 require "qy_wechat_api/api/user"
 require "qy_wechat_api/api/menu"
+require "qy_wechat_api/api/oauth"
diff --git a/lib/qy_wechat_api/api/base.rb b/lib/qy_wechat_api/api/base.rb
index 708a912..9c65f17 100644
--- a/lib/qy_wechat_api/api/base.rb
+++ b/lib/qy_wechat_api/api/base.rb
@@ -3,10 +3,11 @@
 module QyWechatApi
   module Api
     class Base
-      attr_accessor :access_token
+      attr_accessor :access_token, :corp_id
 
-      def initialize(access_token)
+      def initialize(access_token, corp_id=nil)
         @access_token = access_token
+        @corp_id = corp_id
       end
 
       private
@@ -22,6 +23,10 @@ module QyWechatApi
           QyWechatApi.http_post_without_token(request_url, payload, params)
         end
 
+        def base_url
+          ""
+        end
+
     end
   end
 end
diff --git a/lib/qy_wechat_api/api/oauth.rb b/lib/qy_wechat_api/api/oauth.rb
new file mode 100644
index 0000000..26967f9
--- /dev/null
+++ b/lib/qy_wechat_api/api/oauth.rb
@@ -0,0 +1,27 @@
+# encoding: utf-8
+module QyWechatApi
+  module Api
+    class Oauth < Base
+
+      # appid 是 企业的CorpID
+      # redirect_uri  是 授权后重定向的回调链接地址，请使用urlencode对链接进行处理
+      # response_type 是 返回类型，此时固定为：code
+      # scope 是 应用授权作用域，此时固定为：snsapi_base
+      # state 否 重定向后会带上state参数，企业可以填写a-zA-Z0-9的参数值
+      # #wechat_redirect 是微信终端使用此参数判断是否需要带上身份信息
+      # https://open.weixin.qq.com/connect/oauth2/authorize?appid=CORPID&redirect_uri=REDIRECT_URI&response_type=code&scope=SCOPE&state=STATE#wechat_redirect
+      def authorize_url(redirect_uri, state="qy_wechat")
+        require "erb"
+        redirect_uri = ERB::Util.url_encode(redirect_uri)
+        QyWechatApi.open_endpoint("/connect/oauth2/authorize?appid=#{corp_id}&redirect_uri=#{redirect_uri}&response_type=code&scope=snsapi_base&state=#{state}#wechat_redirect")
+      end
+
+      # 根据code获取成员信息
+      # https://qyapi.weixin.qq.com/cgi-bin/user/getuserinfo?access_token=ACCESS_TOKEN&code=CODE&agentid=AGENTID
+      def get_user_info(code, agent_id)
+        http_get("user/getuserinfo", {code: code, agentid: agent_id})
+      end
+
+    end
+  end
+end
diff --git a/lib/qy_wechat_api/client.rb b/lib/qy_wechat_api/client.rb
index 26927b7..1a3e712 100644
--- a/lib/qy_wechat_api/client.rb
+++ b/lib/qy_wechat_api/client.rb
@@ -38,6 +38,10 @@ module QyWechatApi
       Api::Menu.new(get_access_token)
     end
 
+    def oauth
+      Api::Oauth.new(get_access_token, corp_id)
+    end
+
     private
       def get_access_token
         self.access_token ||= get_token.result[:access_token]
--
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