diff --git a/app/controllers/concerns/laboratory_helper.rb b/app/controllers/concerns/laboratory_helper.rb
index b231b848..0ec2d8d6 100644
--- a/app/controllers/concerns/laboratory_helper.rb
+++ b/app/controllers/concerns/laboratory_helper.rb
@@ -46,4 +46,8 @@ module LaboratoryHelper
       register_url: "https://www.trustie.net/login?login=false"
     }
   end
+
+  def manager_url
+    {name: '管理', link: "#{EduSetting.get('host_name')/managements}"}
+  end
 end
diff --git a/app/models/laboratory_setting.rb b/app/models/laboratory_setting.rb
index 5b406f44..60356e34 100644
--- a/app/models/laboratory_setting.rb
+++ b/app/models/laboratory_setting.rb
@@ -72,4 +72,4 @@ class LaboratorySetting < ApplicationRecord
       footer: nil
     }
   end
-end
\ No newline at end of file
+end
diff --git a/app/views/settings/show.json.jbuilder b/app/views/settings/show.json.jbuilder
index 1cf051d2..8eddf8e6 100644
--- a/app/views/settings/show.json.jbuilder
+++ b/app/views/settings/show.json.jbuilder
@@ -20,14 +20,16 @@ json.setting do
   # end
 
   nav_bar = default_setting.navbar
-  if User.current.logged?
-    nav_bar[2]["link"] = "/users/#{current_user.login}/projects"
-    nav_bar[2]["hidden"] = false
-  else
-    nav_bar[2]["link"] = ""
-    nav_bar[2]["hidden"] = true
+  # if User.current.logged?
+  #   nav_bar[2]["link"] = "/users/#{current_user.login}/projects"
+  #   nav_bar[2]["hidden"] = false
+  # else
+  #   nav_bar[2]["link"] = ""
+  #   nav_bar[2]["hidden"] = true
+  # end
+  if current_user && current_user.admin?
+    nav_bar << manager_url
   end
-
   json.name default_setting.name
   json.nav_logo_url default_setting.nav_logo_url&.[](1..-1)
   json.login_logo_url default_setting.login_logo_url&.[](1..-1)