diff --git a/app/controllers/student_work_controller.rb b/app/controllers/student_work_controller.rb
index 650d97555..5cb646c8e 100644
--- a/app/controllers/student_work_controller.rb
+++ b/app/controllers/student_work_controller.rb
@@ -215,7 +215,6 @@ class StudentWorkController < ApplicationController
       student_work ||= StudentWork.new
       student_work.name = params[:student_work][:name]
       student_work.description = params[:student_work][:description]
-      student_work.project_id = params[:student_work][:project_id]
       student_work.homework_common_id = @homework.id
       student_work.user_id = User.current.id
       student_work.save_attachments(params[:attachments])
@@ -305,15 +304,28 @@ class StudentWorkController < ApplicationController
       @work.save_attachments(params[:attachments])
       render_attachment_warning_if_needed(@work)
       if @work.save
+        if @homework.homework_type == 3
+          @student_work_project = @homework.student_work_projects.where("user_id=?",User.current.id).first
+          student_work_projects = @homework.student_work_projects.where("student_work_id=? and is_leader =?",@work.id,0)
+          student_work_projects.delete_all
+          members = params[:group_member_ids].split(',')
+          for i in 1 .. members.count-1
+            stu_project = StudentWorkProject.new
+            stu_project.homework_common_id = @homework.id
+            stu_project.student_work_id = @work.id
+            if @homework.homework_detail_group.base_on_project == 1
+              stu_project.project_id = @student_work_project.project_id
+            else @homework.homework_detail_group.base_on_project == 0
+              stu_project.project_id = -1
+            end
+            stu_project.user_id = members[i].to_i
+            stu_project.is_leader = 0
+            stu_project.save
+          end
+        end
+
         course_message = CourseMessage.new(:user_id =>User.current.id,:content=>"edit",:course_message_id=>@work.id,:course_id => @course.id,:course_message_type=>"StudentWork", :status => 9) #作品提交记录
         course_message.save
-=begin
-        respond_to do |format|
-          format.html {
-            flash[:notice] = l(:notice_successful_edit)
-            redirect_to student_work_index_url(:homework => @homework.id)
-          }
-=end
         @student_work = @work
         respond_to do |format|
           format.js
diff --git a/app/views/student_work/_choose_group_member.html.erb b/app/views/student_work/_choose_group_member.html.erb
index f94250d23..dc650cfa8 100644
--- a/app/views/student_work/_choose_group_member.html.erb
+++ b/app/views/student_work/_choose_group_member.html.erb
@@ -92,5 +92,17 @@
             url: '<%= url_for(:controller => 'student_work', :action => 'search_course_students') %>'+'?homework='+<%=@homework.id %>,
             type:'get'
         });
+        <% if defined?(edit_mode) && edit_mode %>
+            <% pro = @homework.student_work_projects.where("user_id = ?",User.current.id).first.project_id.to_i %>
+            <% members = @homework.student_work_projects.where("project_id = ? and is_leader =?",pro,0) %>
+            <% members.each do |member| %>
+                var link = "<li id='choose_student_<%=member.user_id%>' onclick='delete_student(<%=member.user_id %>);'><%=member.user.show_name %>";
+                <% unless member.user.user_extensions.student_id == "" %>
+                link += "(<%=member.user.user_extensions.student_id %>)";
+                <% end %>
+                link += "</li>";
+                $("#choose_students_list").append(link);
+            <% end %>
+        <% end %>
     });
 </script>
\ No newline at end of file
diff --git a/app/views/student_work/edit.html.erb b/app/views/student_work/edit.html.erb
index 6ca609502..c7c572cff 100644
--- a/app/views/student_work/edit.html.erb
+++ b/app/views/student_work/edit.html.erb
@@ -31,7 +31,11 @@
           提示：作品名称和描述中不要出现真实的姓名信息
         </div>
         <div class="cl"></div>
-
+        <% if @homework.homework_type == 3 %>
+            <span id="min_num_member" style="display: none"><%=@homework.homework_detail_group.min_num %></span>
+            <span id="max_num_member" style="display: none"><%=@homework.homework_detail_group.max_num %></span>
+            <%=hidden_field_tag 'group_member_ids', params[:group_member_ids], :value=>User.current.id %>
+        <% end %>
         <div>
           <input type="text" name="student_work[name]" id="student_work_name" placeholder="请简洁的概括作品的功能或特性" class="InputBox  W700" maxlength="200" onkeyup="regexStudentWorkName();" value="<%= @work.name%>">
           <div class="cl"></div>
@@ -51,6 +55,12 @@
           <%= render :partial => 'users/user_homework_attachment', :locals => {:container => @work, :has_program=>false,:has_group=>false} %>
         </div>
 
+        <% if @homework.homework_type == 3 %>
+            <div class="mt5 fl">
+              <a href="javascript:void(0);" class="memberBtn fl mt3 mr15" title="请添加小组的其他成员" onclick="show_group_member();">合作成员</a>
+            </div>
+        <% end %>
+
         <div class="mt5">
           <a href="javascript:void(0);" class="BlueCirBtnMini fr" onclick="popupRegex();edit_student_work(<%= @work.id%>);">确定</a>
           <span class="fr mr10 mt3">或</span>
@@ -61,14 +71,44 @@
   </div><!----HomeWorkCon end-->
 </div>
 <script type="text/javascript">
+    <% if @homework.homework_detail_group %>
+    $(function(){
+        <%members = @work.student_work_projects.where("is_leader =?",0) %>
+        var str = $('#group_members_show').html();
+        <% members.each do |member| %>
+            str += '、<%= (User.find member.user_id).show_name %>';
+        <% end %>
+        $('#group_members_show').html(str);
+        $('span.group_detail_info').text('分组人数：<%=@homework.homework_detail_group.min_num %>-<%=@homework.homework_detail_group.max_num %> 人');
+    });
+    <% end %>
+    // 添加组成员
+    function show_group_member() {
+        $('#ajax-modal').html('<%= escape_javascript(render :partial => 'student_work/choose_group_member',:locals => {:homework=>@homework,:edit_mode => true}) %>');
+        showModal('ajax-modal', '528px');
+        $('#ajax-modal').siblings().remove();
+        $('#ajax-modal').parent().css("top","").css("left","");
+        $('#ajax-modal').parent().addClass("addMemberCP");
+    }
+
     function popupRegex(){
         if(regexStudentWorkName()&&regexStudentWorkDescription())
         {
-            $('#ajax-modal').html("<div><p align='center' style='margin-top: 35px'>作品信息完整性校验中，请稍等...</p></div>");
-            showModal('ajax-modal', '500px');
-            $('#ajax-modal').siblings().remove();
-            $('#ajax-modal').parent().css("top","").css("left","");
-            $('#ajax-modal').parent().addClass("anonymos");
+            if($("#group_member_ids").length > 0) {
+                if(regexStudentWorkMember(parseInt($.trim($("#min_num_member").html())),parseInt($.trim($("#max_num_member").html())))) {
+                    $('#ajax-modal').html("<div><p align='center' style='margin-top: 35px'>作品信息完整性校验中，请稍等...</p></div>");
+                    showModal('ajax-modal', '500px');
+                    $('#ajax-modal').siblings().remove();
+                    $('#ajax-modal').parent().css("top","").css("left","");
+                    $('#ajax-modal').parent().addClass("anonymos");
+                }
+            } else {
+                $('#ajax-modal').html("<div><p align='center' style='margin-top: 35px'>作品信息完整性校验中，请稍等...</p></div>");
+                showModal('ajax-modal', '500px');
+                $('#ajax-modal').siblings().remove();
+                $('#ajax-modal').parent().css("top","").css("left","");
+                $('#ajax-modal').parent().addClass("anonymos");
+            }
         }
     }
 </script>
\ No newline at end of file
diff --git a/public/javascripts/new_user.js b/public/javascripts/new_user.js
index 67892fe0f..65741adc8 100644
--- a/public/javascripts/new_user.js
+++ b/public/javascripts/new_user.js
@@ -267,8 +267,15 @@ function edit_student_work(id)
 {
     if(regexStudentWorkName()&&regexStudentWorkDescription())
     {
-        $("#edit_student_work_" + id).submit();
-        $("#ajax-indicator").hide();
+        if($("#group_member_ids").length > 0) {
+            if(regexStudentWorkMember(parseInt($.trim($("#min_num_member").html())),parseInt($.trim($("#max_num_member").html())))) {
+                $("#edit_student_work_" + id).submit();
+                $("#ajax-indicator").hide();
+            }
+        } else {
+            $("#edit_student_work_" + id).submit();
+            $("#ajax-indicator").hide();
+        }
     }
 }