diff --git a/app/api/mobile/apis/cnmooc.rb b/app/api/mobile/apis/cnmooc.rb
index f49b4f66..a45989c3 100644
--- a/app/api/mobile/apis/cnmooc.rb
+++ b/app/api/mobile/apis/cnmooc.rb
@@ -30,9 +30,8 @@ module Mobile
 
         desc "创建用户"
         params do
-          requires :mail, type: String, desc: "邮箱地址"
-          requires :name, type: String, desc: "昵称"
-          requires :password, type: String, desc: "密码"
+          requires :userName, type: String, desc: "好大学用户名"
+          optional :name, type: String, desc: "用户姓名"
         end
         post "create_user" do
           CnmoocsService.new.create_user params
diff --git a/app/models/cnmooc_user.rb b/app/models/cnmooc_user.rb
new file mode 100644
index 00000000..e834c768
--- /dev/null
+++ b/app/models/cnmooc_user.rb
@@ -0,0 +1,8 @@
+class CnmoocUser < UserSource
+
+  private
+
+  def email_prefix
+    'cnmooc_'
+  end
+end
diff --git a/app/models/user_source.rb b/app/models/user_source.rb
new file mode 100644
index 00000000..d8fb350d
--- /dev/null
+++ b/app/models/user_source.rb
@@ -0,0 +1,21 @@
+class UserSource < ActiveRecord::Base
+  belongs_to :user
+
+  def generate_email
+    email = rand_email
+    while User.exists?(mail: email) do
+      email = rand_email
+    end
+    email
+  end
+
+  private
+
+  def rand_email
+    email_prefix + Random.rand.to_s[2..8] + '@educoder.com'
+  end
+
+  def email_prefix
+    ''
+  end
+end
diff --git a/app/services/cnmoocs_service.rb b/app/services/cnmoocs_service.rb
index 33f166da..5057fabe 100644
--- a/app/services/cnmoocs_service.rb
+++ b/app/services/cnmoocs_service.rb
@@ -43,22 +43,32 @@ class CnmoocsService
     end
   end
 
-  def create_user params
-    user = User.find_by_mail params[:mail]
-    if user.blank?
-      ActiveRecord::Base.transaction do
-        # 如果Educoder中已存在与该OpenI用户的邮箱相同的用户，则会直接跳转到登录educoder的登录页面
-        user = User.new(lastname: params[:name], mail: params[:mail], mail_notification: email)
-        user.login = generate_login('m')
-        user.password = params[:password]
-        user.certification = 1
-        user.save!
-        UserExtensions.create!(user_id: user.id, school_id: School.first.id, identity: 4, gender: 0)
-      end
-      {error: 0, messages: "创建成功"}
-    else
-      {error: -1, messages: "邮箱已经存在，请直接使用邮箱登录"}
+  def create_user(params)
+    c_user = CnmoocUser.find_by_uuid(params[:userName])
+
+    if c_user.present?
+      return { error: -1, messages: '用户已存在' }
     end
+
+    mail = c_user.generate_email
+    create_params = {
+      lastname: params[:name],
+      mail: mail,
+      mail_notification: mail,
+      login: generate_login('m'),
+      password: OauthController::DEFAULT_PASSWORD,
+      certification: 1
+    }
+    ActiveRecord::Base.transaction do
+      user = User.create!(create_params)
+
+      UserExtensions.create!(user_id: user.id, school_id: School.first.id, identity: 4, gender: 0)
+
+      c_user.user_id = user.id
+      c_user.save!
+    end
+
+    { error: 0, messages: "创建成功", data: { userId: user.id } }
   end
 
   def login_educoder params
@@ -85,5 +95,4 @@ class CnmoocsService
     end
     {resouces: shixun_list}
   end
-
 end
\ No newline at end of file
diff --git a/db/migrate/20190528075558_create_user_sources.rb b/db/migrate/20190528075558_create_user_sources.rb
new file mode 100644
index 00000000..03f6c12a
--- /dev/null
+++ b/db/migrate/20190528075558_create_user_sources.rb
@@ -0,0 +1,15 @@
+class CreateUserSources < ActiveRecord::Migration
+  def change
+    create_table :user_sources do |t|
+      t.string :type
+      t.integer :user_id
+      t.string :uuid
+      t.string :name
+
+      t.timestamps
+    end
+
+    add_index :user_sources, [:type, :uuid], unique: true
+    add_index :user_sources, :user_id
+  end
+end