diff --git a/app/controllers/admins/users_controller.rb b/app/controllers/admins/users_controller.rb
index 9327f659..a8880951 100644
--- a/app/controllers/admins/users_controller.rb
+++ b/app/controllers/admins/users_controller.rb
@@ -63,12 +63,14 @@ class Admins::UsersController < Admins::BaseController
   end
   
   def create
-    logger.info "---validate_create_params: #{validate_create_params}"
     Users::AdminCreateUserForm.new(validate_create_params).validate!
 
-    user = User.new(create_params)
-    user.type = 'User'
-    user.login = User.generate_login("p")
+    user  = User.new(create_params)
+    login = User.generate_login("p")
+
+    user.type  = 'User'
+    user.login = login
+    user.mail  = "#{login}@example.org"
     ActiveRecord::Base.transaction do
       if user.save!
         UserExtension.create!(user_id: user.id)
@@ -108,6 +110,6 @@ class Admins::UsersController < Admins::BaseController
   end
 
   def validate_create_params
-    create_params.slice(:mail, :phone, :password)
+    create_params.slice(:phone, :password)
   end
 end
diff --git a/app/forms/users/admin_create_user_form.rb b/app/forms/users/admin_create_user_form.rb
index b57c317a..8845aa2b 100644
--- a/app/forms/users/admin_create_user_form.rb
+++ b/app/forms/users/admin_create_user_form.rb
@@ -2,22 +2,10 @@ class Users::AdminCreateUserForm
   include ActiveModel::Model
 
   
-  attr_accessor :mail, :phone, :password
+  attr_accessor :phone, :password
 
-  validates :mail, presence: true, format: { with: CustomRegexp::EMAIL, message: "邮箱格式错误." }
   validates :phone, presence: true, format: { with: CustomRegexp::PHONE, message: "手机号格式错误" }
   validates :password, presence: true, length: { minimum: 8, maximum: 16 }, format: { with: CustomRegexp::PASSWORD, message: "8~16位密码，支持字母数字和符号" }
 
-  validate :check_mail
-
-  private
-  def check_mail
-    return if mail.blank?
-    if User.exists?(mail: mail)
-      raise "邮箱 #{mail} 已使用." 
-      errors.add(:mail, :not_exist)
-    end
-  end
-  
 end
 
diff --git a/app/views/admins/users/new.html.erb b/app/views/admins/users/new.html.erb
index e3c32f6b..d435e17f 100644
--- a/app/views/admins/users/new.html.erb
+++ b/app/views/admins/users/new.html.erb
@@ -11,7 +11,6 @@
     <div class="form-group px-2">
       <div class="form-row">
         <%= f.input :phone, as: :tel, label: '手机号', required: true, wrapper_html: { class: 'col-md-3' }, input_html: { class: 'col-sm-11', autocomplete: 'off' } %>
-        <%= f.input :mail, as: :email, label: '邮箱地址', required: true, error_html: { id: 'password_error'}, wrapper_html: { class: 'col-md-3' }, input_html: { class: 'col-sm-11' } %>
       </div>
     </div>