diff --git a/app/helpers/watchers_helper.rb b/app/helpers/watchers_helper.rb
index 8acd0b577..935fb440e 100644
--- a/app/helpers/watchers_helper.rb
+++ b/app/helpers/watchers_helper.rb
@@ -123,17 +123,17 @@ module WatchersHelper
     url_f = join_group_path(:object_id => group.id)
     if @isjoin == true
       joined = user.member_of_course_group?(group)
-      text = l(:label_exit_course)
+      text = l(:label_exit_group)
 
       if joined
         link_to text, {:controller => "courses", :action => "join_group", :object_id => "#{group.id}"},
                 :remote => true, :method => 'delete',
-                :id => "#{group.id}", :style => "padding: 8px 8px 4px;",
+                :id => "#{group.id}", :style => "padding: 8px 8px 4px; ",
                 :confirm => l(:text_are_you_sure_out_group), :class => 'group_in'
 
       end
     else
-      text = l(:label_new_join)
+      text = l(:label_new_join_group)
       form_tag({:controller => "courses", :action => "join_group", :object_id => "#{group.id}"}, :remote => true, :method => 'post') do
         submit_tag text, class: "group_in", style: "width: 43px;height: 21px;"
       end
diff --git a/app/models/principal.rb b/app/models/principal.rb
index 2eaba6796..5aa21768f 100644
--- a/app/models/principal.rb
+++ b/app/models/principal.rb
@@ -26,11 +26,11 @@ class Principal < ActiveRecord::Base
 
   has_many :members, :foreign_key => 'user_id', :dependent => :destroy
   has_many :memberships, :class_name => 'Member', :foreign_key => 'user_id', :include => [ :project, :roles ], :conditions => "#{Project.table_name}.status<>#{Project::STATUS_ARCHIVED}", :order => "#{Project.table_name}.name"
-  has_many :coursememberships, :class_name => 'Member', :foreign_key => 'user_id', :include => [ :course, :roles ],  :order => "#{Course.table_name}.name"
+  has_many :coursememberships, :class_name => 'Member', :foreign_key => 'user_id', :include => [ :course, :roles ],  :conditions => "#{Course.table_name}.status<>#{Course::STATUS_ARCHIVED}",  :order => "#{Course.table_name}.name"
   has_many :projects, :through => :memberships
   #add by nwb
   has_many :courses, :through => :coursememberships
-  has_many :course_groups, :through => :coursememberships
+  has_many :course_groups, :through => :members
   has_many :issue_categories, :foreign_key => 'assigned_to_id', :dependent => :nullify
 
   # Groups and active users
diff --git a/app/views/courses/_groups_name.html.erb b/app/views/courses/_groups_name.html.erb
index 7aa47b772..7bff77a79 100644
--- a/app/views/courses/_groups_name.html.erb
+++ b/app/views/courses/_groups_name.html.erb
@@ -26,31 +26,19 @@
 
 
     <ul>
-
-      <li style=" color:#8b8b8b;">分班:</li>
-
       <li class="classbox">
-        <% course_member_count = l(:label_all) + "(" + @membercount.to_s + "人)" %>
-      <%= form_tag( searchgroupmembers_course_path(@course, :group_id => 0), method: 'get',:remote=>true) do %>
-
-
-        <%= hidden_field_tag "all", params[:group_id], name: 'all' %>
-        <%= submit_tag  course_member_count, :style => "background: #f8df8c; border:0px; color: black" %>
-
-      <% end %>
+        <% course_member_count = l(:label_all) + " ( " + @membercount.to_s + "人)" %>
+        <%= link_to course_member_count, searchgroupmembers_course_path(@course,:group_id => 0), method: 'get', remote: true,:style => " border:0px; color: #0d90c3; float:left;"%>
       </li>
       <% if course_groups.any? %>
       <% course_groups.each do |group| %>
-      <% group_display = group.name + "(" + group.members.count.to_s + "人)" %>
+      <% group_display = group.name + " (" + group.members.count.to_s + "人)" %>
       <li class="classbox" id="group_name_<%= group.id %>">
-        <%= form_tag(searchgroupmembers_course_path(@course,:group_id => group.id), method: 'get', remote: true) do %>
-            <%#= text_field_tag "group_id", params[:group_id] %>
-            <%= submit_tag group_display, :onclick => "$asign_id(#{group.id})",:style => "background: #f8df8c; border:0px; color: black; float:left;"%>
-            <% if @canShowCode %>
-            <a href="javascript:void(0)" class="f_l" onclick="$('#add_tag_<%= group.id %>').slideToggle();"><img src="/images/pic_edit.png" width="14" height="15" alt="编辑班级" /></a>
-            <% end %>
+        <%= link_to group_display, searchgroupmembers_course_path(@course,:group_id => group.id), method: 'get', remote: true, :onclick => "$asign_id(#{group.id})",:style => " border:0px; color: #0d90c3; float:left;"%>
+        <% if @canShowCode %>
+        <a href="javascript:void(0)" class="f_l" onclick="$('#add_tag_<%= group.id %>').slideToggle();"><img src="/images/pic_edit.png" width="14" height="15" alt="编辑班级" /></a>
         <% end %>
-           </li>
+      </li>
       <li>
         <%= form_tag(updategroupname_course_path(@course,:group_id => group.id), method: 'get', remote:true, update: 'group_name') do %>
                 <span id="add_tag_<%= group.id %>" style="display:none; vertical-align: middle;" class=" f_l">
diff --git a/app/views/courses/_member_list.html.erb b/app/views/courses/_member_list.html.erb
index 2363d0fe5..6de228fd2 100644
--- a/app/views/courses/_member_list.html.erb
+++ b/app/views/courses/_member_list.html.erb
@@ -1,13 +1,18 @@
-<div >
+<div style="margin-left: 15px">
 <% if User.current.logged? && User.current.member_of_course?(@course) && @group  %>
       <% if !@canShowCode %>
           <%= join_in_course_group(@course.course_groups,@group, User.current) %>
       <% end %>&nbsp;&nbsp;&nbsp;
-    <span style="font-size: 18px"><%= @group.name %><%= @subPage_title %></span>
+    <span style="font-size: 18px; float: left; margin-right: 35px"><%= l(:label_current_group)%>:&nbsp;<%= @group.name %></span>
+  <% end %>
+  <%= form_tag( searchmembers_course_path(@course), method: 'get',:class => "f_l",:style => "margin-left: 5px; ",:remote=>true) do %>
+      <%= text_field_tag 'name', params[:name], name: "name", :class => 'f_1', :style => "height:15px"%>
+      <%= submit_tag l(:label_search), :class => "f_2"%>
+      <%#= link_to l(:label_search),'' , :class => 'f_2' %>
+  <% end %>
 
-<% end %>
 </div>
-
+<div class="cl"></div>
 <% if members.any? %>
     <% if @result_count %>
         <p style="font-size: 18px;"><%= l(:label_search_member_count) %><%= @result_count %><%= l(:label_member_people) %></p>
diff --git a/app/views/courses/member.html.erb b/app/views/courses/member.html.erb
index 5d596efeb..fb317acf6 100644
--- a/app/views/courses/member.html.erb
+++ b/app/views/courses/member.html.erb
@@ -3,20 +3,14 @@
 <div class="st_list">
   <div class="st_search">
     <span class="f_l"><%= @subPage_title %></span>
-    <% if @subPage_title == l(:label_student_list) %>
-        <%= form_tag( searchmembers_course_path(@course), method: 'get',:class => "f_l",:remote=>true) do %>
-            <%= text_field_tag 'name', params[:name], name: "name", :class => 'f_1'%>
-            <%= submit_tag l(:label_search), :class => "f_2"%>
-            <%#= link_to l(:label_search),'' , :class => 'f_2' %>
-        <% end %>
-    <% end %>
+
   </div>
   <div class="cl"></div>
-
+  <% if @subPage_title == l(:label_student_list) %>
   <div class="st_addclass" id = "st_groups">
     <%= render :partial => 'groups_name', locals: {:course_groups => @course_groups} %>
   </div>
-
+    <% end %>
 
   <div class="cl"></div>
 
diff --git a/config/locales/zh.yml b/config/locales/zh.yml
index ce3181864..7efd6a4f0 100644
--- a/config/locales/zh.yml
+++ b/config/locales/zh.yml
@@ -572,6 +572,7 @@ zh:
   label_member:
   label_search_member_count: 共搜索到
   label_member_people: 人
+  label_current_group: 当前分班
   label_limit_groupname: 组别名不能超出20字符
   label_limit_groupname_null: 组别名不能为空
   label_member_new: 添加成员
@@ -1906,7 +1907,9 @@ zh:
   label_bids_task_list: 作业列表
   label_join_course: 加入
   label_exit_course: 退出
+  label_exit_group: 退出当前分班
   label_new_join: 加入
+  label_new_join_group: 加入当前分班
   label_new_course_password: 课程密码
   label_new_course_school: 开课学校
   label_new_course_description: 课程描述
diff --git a/public/stylesheets/course_group.css b/public/stylesheets/course_group.css
index 10d69f384..ebc861b0f 100644
--- a/public/stylesheets/course_group.css
+++ b/public/stylesheets/course_group.css
@@ -20,9 +20,9 @@ a:hover{ }
 .c_red{ color:#ec0016;}
 .w90{width:90px;}
 .ml10{margin-left:10px;}
-.st_search input.f_2 {
+input.f_2 {
     width:60px !important;
-    height:28px !important;
+    height:24px !important;
     color:#fff !important;
     margin-right:5px !important;
     border:none !important;
@@ -81,16 +81,17 @@ a:hover.st_add{ color:#ff8e15;}
 .submit_2{height:21px;border:0; cursor:pointer; background:url(../images/btn1.png) no-repeat  0 0;width:42px; margin-top:2px; margin-left:3px; }
 .isTxt{background:#fbfbfb url(../images/inputBg.png) repeat-x left top;height:22px;line-height:22px;border:1px solid #c1c1c1;padding:0 5px;color:#666666;}
 .group_in {
-    width:60px !important;
+    width:90px !important;
     height:28px !important;
-    color:#fff !important;
+    color:#1c9ec7!important;
     margin-right:5px !important;
     border:none !important;
+    font-size: 14px !important;
     margin-left:0px !important;
     box-shadow: none !important;
-
+    float: right;
     border-radius: 0 !important;
     text-shadow: none !important;
-    border:1px solid #1c9ec7;
-    background:#1c9ec7;
+    padding: 0px !important;
+    background:#ffffff !important;
 }
\ No newline at end of file