diff --git a/app/controllers/api/v1/users_controller.rb b/app/controllers/api/v1/users_controller.rb
index 3f7b49f99..2204ff89f 100644
--- a/app/controllers/api/v1/users_controller.rb
+++ b/app/controllers/api/v1/users_controller.rb
@@ -8,6 +8,11 @@ class Api::V1::UsersController < Api::V1::BaseController
     render_ok
   end
 
+  def check_user_login 
+    return tip_exception(-1, "用户标识不存在") unless params[:login].present? && User.exists?(login: params[:login])
+    render_ok 
+  end
+
   def send_email_vefify_code 
     code = %W(0 1 2 3 4 5 6 7 8 9)
     verification_code = code.sample(6).join
diff --git a/app/views/users/get_user_info.json.jbuilder b/app/views/users/get_user_info.json.jbuilder
index dc8315ea2..f2793b0f0 100644
--- a/app/views/users/get_user_info.json.jbuilder
+++ b/app/views/users/get_user_info.json.jbuilder
@@ -29,3 +29,4 @@ json.has_trace_user @user.trace_user.present?
 json.is_new @user.login.present? && params[:login].to_s.include?("#{@user.login}")
 json.nps EduSetting.get("nps-on-off-switch").to_s == 'true' && UserNp.where(user_id: current_user.id).where("created_at >= ?", (Time.now - 30.days).beginning_of_day ).blank?
 json.open_blockchain EduSetting.get("open_blockchain_users").to_s.split(",").include?(@user.id.to_s) || EduSetting.get("open_blockchain_users").to_s.split(",").include?(@user.login)
+json.sign_cla @user.sign_cla
diff --git a/config/routes/api.rb b/config/routes/api.rb
index 77ff5d03b..20c56138c 100644
--- a/config/routes/api.rb
+++ b/config/routes/api.rb
@@ -5,6 +5,7 @@ defaults format: :json do
       resources :users, only: [:index] do 
         collection do 
           post :check_user_id
+          post :check_user_login
         end
       end
 
diff --git a/db/migrate/20230420031926_add_sign_cla_to_users.rb b/db/migrate/20230420031926_add_sign_cla_to_users.rb
new file mode 100644
index 000000000..36a849bfb
--- /dev/null
+++ b/db/migrate/20230420031926_add_sign_cla_to_users.rb
@@ -0,0 +1,5 @@
+class AddSignClaToUsers < ActiveRecord::Migration[5.2]
+  def change
+    add_column :users, :sign_cla, :boolean, default: false
+  end
+end