diff --git a/app/controllers/homework_common_controller.rb b/app/controllers/homework_common_controller.rb
index fb22d6378..cac8eaf0a 100644
--- a/app/controllers/homework_common_controller.rb
+++ b/app/controllers/homework_common_controller.rb
@@ -1,7 +1,7 @@
 class HomeworkCommonController < ApplicationController
   layout "base_courses"
   before_filter :find_course, :only => [:index,:new,:create]
-  before_filter :find_homework, :only => [:edit,:update,:alert_anonymous_comment,:start_anonymous_comment,:stop_anonymous_comment]
+  before_filter :find_homework, :only => [:edit,:update,:alert_anonymous_comment,:start_anonymous_comment,:stop_anonymous_comment,:destroy]
   before_filter :teacher_of_course, :only => [:new, :create, :edit, :update, :destroy, :start_anonymous_comment, :stop_anonymous_comment, :alert_anonymous_comment]
 
   def index
@@ -120,7 +120,11 @@ class HomeworkCommonController < ApplicationController
   end
 
   def destroy
-
+    if @homework.destroy
+      respond_to do |format|
+        format.html {redirect_to homework_common_index_path(:course => @course.id)}
+      end
+    end
   end
 
   #开启匿评
diff --git a/app/views/homework_common/index.html.erb b/app/views/homework_common/index.html.erb
index e97938633..015df90c5 100644
--- a/app/views/homework_common/index.html.erb
+++ b/app/views/homework_common/index.html.erb
@@ -26,6 +26,7 @@
         </p>
         <% if @is_teacher%>
             <%= homework_anonymous_comment(homework)%>
+            <%= link_to(l(:label_bid_respond_delete), homework_common_path(homework),:method => 'delete', :confirm => l(:text_are_you_sure), :class => "fr mr10 work_edit")  %>
             <%= link_to(l(:button_edit),edit_homework_common_path(homework), :class => "fr mr10 work_edit") %>
         <% elsif @is_student%>
             <%= student_anonymous_comment homework %>
diff --git a/config/locales/zh.yml b/config/locales/zh.yml
index 67be22e19..8adf7d492 100644
--- a/config/locales/zh.yml
+++ b/config/locales/zh.yml
@@ -878,7 +878,6 @@ zh:
   button_copy_and_follow: 复制并转到新问题
   button_annotate: 追溯
 
-  button_edit: 编辑
   button_configure: 配置
   button_quote: 引用
   button_duplicate: 副本
diff --git a/public/stylesheets/courses.css b/public/stylesheets/courses.css
index cb47abb09..9d88470c9 100644
--- a/public/stylesheets/courses.css
+++ b/public/stylesheets/courses.css
@@ -147,7 +147,6 @@ a:hover.work_edit{color: #fff; background: #64bdd9;}
 .hovertab a{color:#fff;  background-color:#64bdd9; text-decoration:none;}
 .dis{display:block;  }
 .undis{display:none;}
-.c_red{ color:#de030d;}
 .f_12{ font-size:12px;}
 .w_40{ width:40px; border:1px solid red;}
 .dis_ul{ height:70px; border-bottom:1px dashed #d4d4d4; margin-bottom:10px;}