diff --git a/app/controllers/shixuns_controller.rb b/app/controllers/shixuns_controller.rb
index 88c07a227..e68c21f4e 100644
--- a/app/controllers/shixuns_controller.rb
+++ b/app/controllers/shixuns_controller.rb
@@ -45,6 +45,16 @@ class ShixunsController < ApplicationController
     @collaborators = @shixun.collaborators
   end
 
+  def collaborators_delete
+    user_id = params[:c_id]
+    shixun_member = ShixunMember.where(:user_id => user_id, :shixun_id => @shixun.id, :role => 2).first
+    shixun_member.delete
+    @collaborators = @shixun.collaborators
+    respond_to do |format|
+      format.js
+    end
+  end
+
   # 已存在的成员不添加
   def add_collaborators
     if !params[:search].nil?
diff --git a/app/views/shixuns/_collaborators_list.html.erb b/app/views/shixuns/_collaborators_list.html.erb
index bf2097b33..114c5ce64 100644
--- a/app/views/shixuns/_collaborators_list.html.erb
+++ b/app/views/shixuns/_collaborators_list.html.erb
@@ -3,7 +3,9 @@
       <a class="fl"><%= image_tag(url_to_avatar(collaborators.user), :width => 60, :height => 60,:class => 'panel-list-img mr15 mt5') %></a>
       <ul class="fl font-12 color-grey">
         <li><a href="<%= user_path(collaborators.user) %>" class="font-16 mt5 link-name-dark task-hide"><%= collaborators.user.try(:show_name) %></a></li>
-        <li><span class="mr30"><%= collaborators.user.identity %></span> <a href="#" class="link-color-grey">删除</a></li>
+        <li><span class="mr30"><%= collaborators.user.identity %></span>
+          <a href="javascript:void(0);" class="link-color-grey" onclick="delete_confirm_box_2('<%= collaborators_delete_shixun_path(@shixun, :c_id => collaborators.user.id) %>', '确定要删除吗？')">删除</a>
+        </li>
       </ul>
     </div>
 <% end %>
\ No newline at end of file
diff --git a/app/views/shixuns/collaborators_delete.js.erb b/app/views/shixuns/collaborators_delete.js.erb
new file mode 100644
index 000000000..f367b9c1a
--- /dev/null
+++ b/app/views/shixuns/collaborators_delete.js.erb
@@ -0,0 +1 @@
+$("#collaborators_list").html("<%= j(render :partial => 'shixuns/collaborators_list') %>");
\ No newline at end of file
diff --git a/config/routes.rb b/config/routes.rb
index 3100e3f42..4902fcbef 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -37,6 +37,7 @@ RedmineApp::Application.routes.draw do
       get 'statistics'
       get 'propaedeutics'
       get 'collaborators'
+      delete 'collaborators_delete'
       match 'add_collaborators', :via => [:get, :post]
       post 'shixun_members_added'
       get 'shixun_monitor'
diff --git a/public/javascripts/edu/application.js b/public/javascripts/edu/application.js
index 9c646d3a6..9f948042c 100644
--- a/public/javascripts/edu/application.js
+++ b/public/javascripts/edu/application.js
@@ -157,7 +157,7 @@ function delete_confirm_box(url, str){
 function delete_confirm_box_2(url, str){
     var htmlvalue = '<div class="task-popup" style="width:480px;"><div class="task-popup-title clearfix"><h3 class="fl color-grey">提示</h3><a href="javascript:void(0);" class="pop_close"><i class="fa fa-times-circle font-18 link-color-grey fr mt5"></i></a></div>'+
         '<div class="task-popup-content"><p class="task-popup-text-center font-16">' + str + '</p></div><div class="task-popup-submit clearfix"><a href="javascript:void(0);" onclick="hideModal();" class="task-btn fl">取消</a>'+
-        '<a href="'+ url +'" class="task-btn task-btn-blue fr" data-method="delete" data-remote="true">确定</a></div></div>';
+        '<a href="'+ url +'" class="task-btn task-btn-blue fr" data-method="delete" data-remote="true" onclick="hideModal();">确定</a></div></div>';
     pop_box_new(htmlvalue, 480, 140);
 }
 
diff --git a/public/stylesheets/css/taskstyle.css b/public/stylesheets/css/taskstyle.css
index 8b141befe..5df176a87 100644
--- a/public/stylesheets/css/taskstyle.css
+++ b/public/stylesheets/css/taskstyle.css
@@ -65,7 +65,7 @@ a.rightbar-pause{ color:#29bd8b; font-size: 18px; margin-right:15px; margin-top:
 .task-popup-text-center{ text-align: center; color: #666;}
 .task-popup-title{ border-bottom: 1px solid #eee; padding:10px 15px; }
 .task-popup-content{ padding:15px;}
-.task-popup-submit{ margin:15px auto; width: 200px;}
+.task-popup-submit{ margin:15px auto; width: 120px;}
 /* TPM */
 .task-header{ width: 100%;min-width:1200px; background:url("/images/task/task-bg-header.png") 0 0 repeat-x; height: 100px;}
 .task-header-info{ width: 1200px; margin: 0 auto; color:#fff; padding:30px 0;}