diff --git a/app/controllers/attachments_controller.rb b/app/controllers/attachments_controller.rb
index 0aec29e6a..44d68de26 100644
--- a/app/controllers/attachments_controller.rb
+++ b/app/controllers/attachments_controller.rb
@@ -217,6 +217,17 @@ class AttachmentsController < ApplicationController
     end
   end
 
+  #删除竞赛作品的附件
+  def delete_softapplications
+    @attachment = Attachment.find params[:id]
+    @softapplication = @attachment.container if @attachment!=nil
+    @attachment.container.attachments.delete(@attachment)  if @attachment!=nil
+    respond_to do |format|
+      format.html { redirect_to_referer_or edit_softapplication_path(@softapplication) }
+      #format.js
+    end
+  end
+
   def autocomplete
     # modify by nwb
     if params[:project_id]
diff --git a/app/controllers/softapplications_controller.rb b/app/controllers/softapplications_controller.rb
index c216a3e93..f2b0a0c83 100644
--- a/app/controllers/softapplications_controller.rb
+++ b/app/controllers/softapplications_controller.rb
@@ -172,8 +172,8 @@ class SoftapplicationsController < ApplicationController
   # PUT /softapplications/1.json
   def update
     # @softapplication = Softapplication.find(params[:id])
-    @softapplication.attachments.map{|attach| attach.destroy }
-    @softapplication.save_attachments(params[:attachments])
+    #@softapplication.attachments.map{|attach| attach.destroy }
+    @softapplication.save_attachments(params[:attachments]) if params[:attachments]
     #@softapplication.deposit_project = params[:project]
     @softapplication.project = Project.find_by_id(params[:project])
 
diff --git a/app/views/attachments/_links.html.erb b/app/views/attachments/_links.html.erb
index 4d938707e..cdd1fdd2f 100644
--- a/app/views/attachments/_links.html.erb
+++ b/app/views/attachments/_links.html.erb
@@ -18,11 +18,20 @@
                                          :method => :delete,
                                          :class => 'delete',
                                          :title => l(:button_delete) %>
+    <%# elsif attachment.container_type == 'Softapplication'%>
+      <%#= link_to image_tag('delete.png'), delete_softapplications_attachments_path(:id => attachment.id),
+                  :data => {:confirm => l(:text_are_you_sure)},
+                  :method => :delete,
+                  :class => 'delete',
+                  :remote => true,
+                  :title => l(:button_delete) %>
     <% else %>
     <%= link_to image_tag('delete.png'), attachment_path(attachment),
                                          :data => {:confirm => l(:text_are_you_sure)},
                                          :method => :delete,
                                          :class => 'delete',
+                                         :remote => true,
+                                         #:id => "attachments_" + attachment.id.to_s,
                                          :title => l(:button_delete) %>
   	<% end %>
   <% end %>
diff --git a/app/views/attachments/delete_softapplications.js.erb b/app/views/attachments/delete_softapplications.js.erb
new file mode 100644
index 000000000..95085ba93
--- /dev/null
+++ b/app/views/attachments/delete_softapplications.js.erb
@@ -0,0 +1,2 @@
+<% options = {:author => true, :deletable => true} %>
+$("#soft_attachments_links").html('<%= escape_javascript(render(:partial => 'links', :locals => {:attachments => @softapplication.attachments, :options => options} )) %>');
\ No newline at end of file
diff --git a/app/views/softapplications/_form.html.erb b/app/views/softapplications/_form.html.erb
index 58f8093a6..17cb20598 100644
--- a/app/views/softapplications/_form.html.erb
+++ b/app/views/softapplications/_form.html.erb
@@ -102,8 +102,10 @@
 		<fieldset style="width: 500px">
               <p style="padding-left: 60px">
                 <% options = {:author => true, :deletable => true} %>
-                <%= render :partial => 'attachments/links',
-                           :locals => {:attachments => @softapplication.attachments, :options => options} %>
+                <span id="soft_attachments_links">
+                  <%= render :partial => 'attachments/links',
+                             :locals => {:attachments => @softapplication.attachments, :options => options} %>
+                </span>
               </p>
 			<legend><%=l(:label_upload_softworkpacket_photo)%></legend>
 				<%= render_flash_messages %>
diff --git a/config/routes.rb b/config/routes.rb
index 8d55fe300..af70b76da 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -520,6 +520,7 @@ RedmineApp::Application.routes.draw do
       match "updateType" , via: [:get, :post]
       match "updateFileDense" , via: [:get, :post]
       match "renderTag" , via: [:get, :post]
+      match 'delete_softapplications', via: [:get, :post]
     end
   end