diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index e6029d33c..603084cd1 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -2992,7 +2992,7 @@ int main(int argc, char** argv){
     unless projects.empty?
       project_ids = '('+projects.map{|pro|pro.project_id}.join(',')+')'
       sort_projects = ForgeActivity.find_by_sql("SELECT MAX(updated_at) AS updated_at,user_id, project_id FROM forge_activities WHERE project_id IN #{project_ids} GROUP BY project_id ORDER BY MAX(updated_at) DESC")
-      
+      #sort_projects = sort_projects.sort_by{|sp| (!sp.project.project_score.nil? && !sp.project.project_score.commit_time.nil?) ? '' : sp.project.project_score.commit_time}
       return sort_projects
     end
   end
diff --git a/app/views/users/_course_homework.html.erb b/app/views/users/_course_homework.html.erb
index 7b51ef568..f87b483da 100644
--- a/app/views/users/_course_homework.html.erb
+++ b/app/views/users/_course_homework.html.erb
@@ -198,10 +198,8 @@
                 <%# first_pro = sort_projects.first %>
                 <% first_pro = Project.find sort_projects.first.project_id %>
                 <% commit_time = first_pro.project_score.commit_time %>
-                <% one_time = first_pro.updated_on %>
                 <% one_forge_time=ForgeActivity.where("project_id=?",first_pro.id).last.updated_at if ForgeActivity.where("project_id=?",first_pro.id).last %>
-                <% one_time= one_time > one_forge_time ? one_time : one_forge_time %>
-                #&nbsp;<%=time_from_now !commit_time.nil? && format_time(commit_time) > format_time(one_time) ? commit_time : one_time %><%= link_to User.find(first_pro.user_id).show_name, user_activities_path(first_pro.user_id), :class => "newsBlue ml5 mr5"%>更新了项目，最近更新：
+                #&nbsp;<%=time_from_now !commit_time.nil? && format_time(commit_time) > format_time(one_forge_time) ? commit_time : one_forge_time %><%= link_to User.find(first_pro.user_id).show_name, user_activities_path(first_pro.user_id), :class => "newsBlue ml5 mr5"%>更新了项目，最近更新：
               </div>
             <div class="cl"></div>
             <% sort_projects.each_with_index do |pro, i| %>
diff --git a/app/views/users/_user_homework_detail.html.erb b/app/views/users/_user_homework_detail.html.erb
index 1b9490918..6e325c2f0 100644
--- a/app/views/users/_user_homework_detail.html.erb
+++ b/app/views/users/_user_homework_detail.html.erb
@@ -208,10 +208,8 @@
               <div class="mr5 fontGrey2">
                 <% first_pro = Project.find sort_projects.first.project_id %>
                 <% commit_time = first_pro.project_score.commit_time %>
-                <% one_time = first_pro.updated_on %>
                 <% one_forge_time=ForgeActivity.where("project_id=?",first_pro.id).last.updated_at if ForgeActivity.where("project_id=?",first_pro.id).last %>
-                <% one_time= one_time > one_forge_time ? one_time : one_forge_time %>
-                #&nbsp;<%=time_from_now !commit_time.nil? && format_time(commit_time) > format_time(one_time) ? commit_time : one_time %><%= link_to User.find(first_pro.user_id).show_name, user_activities_path(first_pro.user_id), :class => "newsBlue ml5 mr5"%>更新了项目，最近更新：
+                #&nbsp;<%=time_from_now !commit_time.nil? && format_time(commit_time) > format_time(one_forge_time) ? commit_time : one_forge_time %><%= link_to User.find(first_pro.user_id).show_name, user_activities_path(first_pro.user_id), :class => "newsBlue ml5 mr5"%>更新了项目，最近更新：
               </div>
               <div class="cl"></div>
               <% sort_projects.each_with_index do |pro, i| %>
diff --git a/lib/tasks/update_homework.rake b/lib/tasks/update_homework.rake
index 33bcc2231..d66f2aa25 100644
--- a/lib/tasks/update_homework.rake
+++ b/lib/tasks/update_homework.rake
@@ -29,6 +29,12 @@ namespace :update_homework do
                   changesets = g.commits(project.gpid, :ref_name => default_branch)
                   changesets_latest_coimmit = changesets[0]
                   unless changesets[0].blank?
+                    project_score = project.project_score
+                    if project_score.nil?
+                      ProjectScore.create(:project_id => project.id, :score => false)
+                    else
+                      project_score.update_column(:commit_time, changesets_latest_coimmit.created_at.to_time)
+                    end
                     if time.strftime('%Y-%m-%d %H:%M:%S') < changesets_latest_coimmit.created_at.to_time.strftime('%Y-%m-%d %H:%M:%S')
                     #if format_time(time) < format_time(changesets_latest_coimmit.created_at)
                       time = changesets_latest_coimmit.created_at.to_time