diff --git a/app/controllers/zipdown_controller.rb b/app/controllers/zipdown_controller.rb
index b2195adc3..10c42cd6c 100644
--- a/app/controllers/zipdown_controller.rb
+++ b/app/controllers/zipdown_controller.rb
@@ -72,7 +72,7 @@ class ZipdownController < ApplicationController
     homeattach.attachments.each do |attach|
       homeworks_attach_path << attach.diskfile#.to_s.slice((length+1)..-1)
     end
-    zipping("#{Time.now.to_i}.zip", homeworks_attach_path, OUTPUT_FOLDER, true)
+    zipping("#{homeattach.user.name}_#{homeattach.user.user_extensions.student_id}.zip", homeworks_attach_path, OUTPUT_FOLDER, true)
   end
 
 
@@ -81,14 +81,14 @@ class ZipdownController < ApplicationController
     ic = Iconv.new('GBK//IGNORE', 'UTF-8//IGNORE')
     input_filename = files_paths
 
-    rename_zipfile = zip_name_refer ||= "archive_#{Time.now.to_i}.zip"
+    rename_zipfile = zip_name_refer ||= "homework.zip"
     zipfile_name = "#{output_path}/#{rename_zipfile}"
 
     Dir.mkdir(File.dirname(zipfile_name)) unless File.exist?(File.dirname(zipfile_name))
 
     Zip::File.open(zipfile_name, Zip::File::CREATE) do |zipfile|
       input_filename.each do |filename|
-        rename_file = Time.now.to_i.to_s+ ic.iconv( (File.basename(filename)) ).to_s
+        rename_file = ic.iconv( (File.basename(filename)) ).to_s
         rename_file = ic.iconv( filename_to_real( File.basename(filename))).to_s if is_attachment
 
         zipfile.add(rename_file, filename)