diff --git a/app/controllers/admins/laboratory_shixuns_controller.rb b/app/controllers/admins/laboratory_shixuns_controller.rb
index f5c7d5ef3..d190573f1 100644
--- a/app/controllers/admins/laboratory_shixuns_controller.rb
+++ b/app/controllers/admins/laboratory_shixuns_controller.rb
@@ -19,6 +19,13 @@ class Admins::LaboratoryShixunsController < Admins::BaseController
     render_ok
   end
 
+  def destroy
+    return render_js_error('不能删除自建实训', type: :notify) if current_laboratory_shixun.ownership?
+    current_laboratory_shixun.destroy!
+
+    render_delete_success
+  end
+
   def homepage
     current_laboratory_shixun.update!(homepage: true)
     render_ok
diff --git a/app/controllers/admins/laboratory_subjects_controller.rb b/app/controllers/admins/laboratory_subjects_controller.rb
index d6dc4af9d..60572110c 100644
--- a/app/controllers/admins/laboratory_subjects_controller.rb
+++ b/app/controllers/admins/laboratory_subjects_controller.rb
@@ -21,6 +21,15 @@ class Admins::LaboratorySubjectsController < Admins::BaseController
     render_ok
   end
 
+  def destroy
+    return render_js_error('不能删除自建课程', type: :notify) if current_laboratory_subject.ownership?
+
+    current_laboratory_subject.destroy!
+
+    render_delete_success
+  end
+
+
   def homepage
     current_laboratory_subject.update!(homepage: true)
     render_ok
diff --git a/app/controllers/cooperative/base_controller.rb b/app/controllers/cooperative/base_controller.rb
index 556cd7aa9..5ab08582d 100644
--- a/app/controllers/cooperative/base_controller.rb
+++ b/app/controllers/cooperative/base_controller.rb
@@ -16,7 +16,7 @@ class Cooperative::BaseController < ApplicationController
   private
 
   def current_laboratory
-    @_current_laboratory ||= Laboratory.find_by_subdomain(request.subdomain)
+    @_current_laboratory ||= Laboratory.find_by_subdomain('hut' || request.subdomain)
   end
 
   def current_setting_or_default(name)
diff --git a/app/controllers/cooperative/laboratory_shixuns_controller.rb b/app/controllers/cooperative/laboratory_shixuns_controller.rb
index e428416da..2aa8a0bf6 100644
--- a/app/controllers/cooperative/laboratory_shixuns_controller.rb
+++ b/app/controllers/cooperative/laboratory_shixuns_controller.rb
@@ -15,6 +15,13 @@ class Cooperative::LaboratoryShixunsController < Cooperative::BaseController
 
   end
 
+  def destroy
+    return render_js_error('不能删除自建实训', type: :notify) if current_laboratory_shixun.ownership?
+    current_laboratory_shixun.destroy!
+
+    render_delete_success
+  end
+
   def homepage
     current_laboratory_shixun.update!(homepage: true)
     render_ok
diff --git a/app/controllers/cooperative/laboratory_subjects_controller.rb b/app/controllers/cooperative/laboratory_subjects_controller.rb
index 77088c223..0243d542a 100644
--- a/app/controllers/cooperative/laboratory_subjects_controller.rb
+++ b/app/controllers/cooperative/laboratory_subjects_controller.rb
@@ -18,6 +18,13 @@ class Cooperative::LaboratorySubjectsController < Cooperative::BaseController
     current_laboratory_subject.subject.update!(update_params)
   end
 
+  def destroy
+    return render_js_error('不能删除自建实践课程', type: :notify) if current_laboratory_subject.ownership?
+    current_laboratory_subject.destroy!
+
+    render_delete_success
+  end
+
   def homepage
     current_laboratory_subject.update!(homepage: true)
     render_ok
diff --git a/app/views/admins/laboratory_shixuns/shared/_td.html.erb b/app/views/admins/laboratory_shixuns/shared/_td.html.erb
index 84cfeb450..dbdf0df75 100644
--- a/app/views/admins/laboratory_shixuns/shared/_td.html.erb
+++ b/app/views/admins/laboratory_shixuns/shared/_td.html.erb
@@ -25,4 +25,8 @@
   <%= link_to('去修改', admins_shixun_settings_path(id: laboratory_shixun.shixun_id)) %>
   <%= javascript_void_link('首页展示', class: 'action homepage-show-action', data: { id: laboratory_shixun.id }, style: laboratory_shixun.homepage? ? 'display:none' : '') %>
   <%= javascript_void_link('取消首页展示', class: 'action homepage-hide-action', data: { id: laboratory_shixun.id }, style: laboratory_shixun.homepage? ? '' : 'display:none') %>
+
+  <% unless laboratory_shixun.ownership? %>
+    <%= delete_link '删除', admins_laboratory_laboratory_shixun_path(current_laboratory, laboratory_shixun, element: ".laboratory-shixun-item-#{laboratory_shixun.id}") %>
+  <% end %>
 </td>
\ No newline at end of file
diff --git a/app/views/admins/laboratory_subjects/shared/_list.html.erb b/app/views/admins/laboratory_subjects/shared/_list.html.erb
index 8194e3dfb..55f67dea8 100644
--- a/app/views/admins/laboratory_subjects/shared/_list.html.erb
+++ b/app/views/admins/laboratory_subjects/shared/_list.html.erb
@@ -36,6 +36,10 @@
             <%= link_to('去修改', admins_subjects_path(id: laboratory_subject.subject_id)) %>
             <%= javascript_void_link('首页展示', class: 'action homepage-show-action', data: { id: laboratory_subject.id }, style: laboratory_subject.homepage? ? 'display:none' : '') %>
             <%= javascript_void_link('取消首页展示', class: 'action homepage-hide-action', data: { id: laboratory_subject.id }, style: laboratory_subject.homepage? ? '' : 'display:none') %>
+
+            <% unless laboratory_subject.ownership? %>
+              <%= delete_link '删除', admins_laboratory_laboratory_subject_path(current_laboratory, laboratory_subject, element: ".laboratory-subject-item-#{laboratory_subject.id}") %>
+            <% end %>
           </td>
         </tr>
       <% end %>
diff --git a/app/views/cooperative/laboratory_shixuns/shared/_td.html.erb b/app/views/cooperative/laboratory_shixuns/shared/_td.html.erb
index e7f87057d..d57a05c2e 100644
--- a/app/views/cooperative/laboratory_shixuns/shared/_td.html.erb
+++ b/app/views/cooperative/laboratory_shixuns/shared/_td.html.erb
@@ -29,4 +29,8 @@
   <% end %>
   <%= javascript_void_link('首页展示', class: 'action homepage-show-action', data: { id: laboratory_shixun.id }, style: laboratory_shixun.homepage? ? 'display:none' : '') %>
   <%= javascript_void_link('取消首页展示', class: 'action homepage-hide-action', data: { id: laboratory_shixun.id }, style: laboratory_shixun.homepage? ? '' : 'display:none') %>
+
+  <% unless laboratory_shixun.ownership? %>
+    <%= delete_link '删除', cooperative_laboratory_shixun_path(laboratory_shixun, element: ".laboratory-shixun-item-#{laboratory_shixun.id}") %>
+  <% end %>
 </td>
\ No newline at end of file
diff --git a/app/views/cooperative/laboratory_subjects/shared/_td.html.erb b/app/views/cooperative/laboratory_subjects/shared/_td.html.erb
index 301bbd6a7..029fdabce 100644
--- a/app/views/cooperative/laboratory_subjects/shared/_td.html.erb
+++ b/app/views/cooperative/laboratory_subjects/shared/_td.html.erb
@@ -25,4 +25,8 @@
 
   <%= javascript_void_link('首页展示', class: 'action homepage-show-action', data: { id: laboratory_subject.id }, style: laboratory_subject.homepage? ? 'display:none' : '') %>
   <%= javascript_void_link('取消首页展示', class: 'action homepage-hide-action', data: { id: laboratory_subject.id }, style: laboratory_subject.homepage? ? '' : 'display:none') %>
+
+  <% unless laboratory_subject.ownership? %>
+    <%= delete_link '删除', cooperative_laboratory_subject_path(laboratory_subject, element: ".laboratory-subject-item-#{laboratory_subject.id}") %>
+  <% end %>
 </td>
\ No newline at end of file
diff --git a/app/views/home/index.json.jbuilder b/app/views/home/index.json.jbuilder
index 5bbd1b799..8edbcb339 100644
--- a/app/views/home/index.json.jbuilder
+++ b/app/views/home/index.json.jbuilder
@@ -3,11 +3,11 @@ json.images_url @images_url
 json.reps @rep_list
 
 json.shixuns do
-  json.partial! 'shixuns/shixun', locals: {shixuns: @shixuns.present? ? @shixuns : @main_shixuns}
+  json.partial! 'shixuns/shixun', locals: {shixuns: @shixuns}
 end
 
 json.subjects do
-  json.partial! 'subjects/subject', locals: {subjects: @subjects.present? ? @subjects : @main_subjects}
+  json.partial! 'subjects/subject', locals: {subjects: @subjects}
 end
 
 if current_laboratory.main_site?
diff --git a/app/views/users/get_user_info.json.jbuilder b/app/views/users/get_user_info.json.jbuilder
index 94f3f76a9..e80c8c215 100644
--- a/app/views/users/get_user_info.json.jbuilder
+++ b/app/views/users/get_user_info.json.jbuilder
@@ -13,6 +13,7 @@ json.phone @user.phone
 json.email @user.mail
 json.profile_completed @user.profile_completed?
 json.professional_certification @user.professional_certification
+json.main_site current_laboratory.main_site?
 if @course
   json.course_identity @course_identity
   json.course_name @course.name
diff --git a/config/routes.rb b/config/routes.rb
index 0c8f61d3c..6add0d256 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -1049,13 +1049,13 @@ Rails.application.routes.draw do
         post :drag, on: :collection
       end
 
-      resources :laboratory_shixuns, only: [:index, :create] do
+      resources :laboratory_shixuns, only: [:index, :create, :destroy] do
         member do
           post :homepage
           post :cancel_homepage
         end
       end
-      resources :laboratory_subjects, only: [:index, :create] do
+      resources :laboratory_subjects, only: [:index, :create, :destroy] do
         member do
           post :homepage
           post :cancel_homepage
@@ -1132,13 +1132,13 @@ Rails.application.routes.draw do
     resources :carousels, only: [:index, :create, :update, :destroy] do
       post :drag, on: :collection
     end
-    resources :laboratory_shixuns, only: [:index, :edit, :update] do
+    resources :laboratory_shixuns, only: [:index, :edit, :update, :destroy] do
       member do
         post :homepage
         post :cancel_homepage
       end
     end
-    resources :laboratory_subjects, only: [:index, :edit, :update] do
+    resources :laboratory_subjects, only: [:index, :edit, :update, :destroy] do
       member do
         post :homepage
         post :cancel_homepage