diff --git a/app/controllers/admin/projects_controller.rb b/app/controllers/admin/projects_controller.rb
index e80f8a2..46af582 100644
--- a/app/controllers/admin/projects_controller.rb
+++ b/app/controllers/admin/projects_controller.rb
@@ -25,7 +25,7 @@ class Admin::ProjectsController < OrbitMemberController
     redirect_to :action=> 'index'
   end
   def merge
-    @projects=Project.order_by(:year=>'desc').map{|value| value}.group_by{|v| [v[:project_title],v[:unit]]}
+    @projects=Project.sort_date.map{|value| value}.group_by{|v| [v[:project_title],v[:unit]]}
     @projects.each do |key,value|
       if value.length<=1
         @projects.delete key
@@ -48,7 +48,7 @@ class Admin::ProjectsController < OrbitMemberController
   end
 
   def index
-    @projects = Project.order_by(:period_start_date=>'desc',:year=>'desc').page(params[:page]).per(10)
+    @projects = Project.sort_date.page(params[:page]).per(10)
   end
 
   def new
diff --git a/app/models/project.rb b/app/models/project.rb
index 9859921..70717ac 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -34,7 +34,9 @@ class Project
   
   before_validation :add_http
 
-  scope :sort_for_frontend, ->{ where(:is_hidden=>false).order_by(:year=>'desc', :period_start_date=>'desc') }
+  index({period_start_date: -1, _id: -1}, { unique: false, background: false })
+  scope :sort_date, ->{ order_by(:period_start_date=>'desc', :id => 'desc') }
+  scope :sort_for_frontend, ->{ where(:is_hidden=>false).order_by(:period_start_date=>'desc', :id => 'desc') }
 
   def duration
     if !self.send('period_start_date').nil? or !self.send('period_end_date').nil?
@@ -81,7 +83,7 @@ class Project
 
     fields_to_show = fields_to_show - fields_to_remove
 
-    plugin_datas = datas.sort_for_frontend.collect.with_index do |p,index|
+    plugin_datas = datas.sort_for_frontend.collect.with_index do |p,idx|
 
       pd_data = []
       fields_to_show.collect do |t|
@@ -102,7 +104,7 @@ class Project
       {
         "pd_datas" => pd_data,
         "type-sort" => (p.project_type.sort_position.to_i rescue 1000),
-        "sort-index" => index
+        "sort-index" => idx
       }
 
     end
diff --git a/app/views/plugin/personal_project/_profile.html.erb b/app/views/plugin/personal_project/_profile.html.erb
index 54e1c3b..3a67315 100644
--- a/app/views/plugin/personal_project/_profile.html.erb
+++ b/app/views/plugin/personal_project/_profile.html.erb
@@ -7,9 +7,9 @@
 
 <%
   if has_access?
-    @projects = Project.where(member_profile_id: @member.id).desc(:year).page(params[:page]).per(10)
+    @projects = Project.where(member_profile_id: @member.id).sort_date.page(params[:page]).per(10)
   else
-    @projects = Project.where(is_hidden: false, member_profile_id: @member.id).desc(:year).page(params[:page]).per(10)
+    @projects = Project.where(is_hidden: false, member_profile_id: @member.id).sort_date.page(params[:page]).per(10)
   end
 %>
 
@@ -28,7 +28,7 @@
       <% if has_access? %>
         <th><input type="checkbox" /></th>
       <% end -%>
-      <th class="span2"><%= t('personal_project.year') %></th>
+      <th class="span2"><%= t('personal_project.period') %></th>
       <th class="span4"><%= t('personal_project.project_title') %></th>
       <th class="span4"><%= t('personal_project.job_title') %></th>
     </tr>
@@ -41,7 +41,7 @@
             <%= check_box_tag 'to_change[]', project.id.to_s, false, :class => "list-check" %>
           </td>
         <% end %>
-        <td><%= project.year %></td>
+        <td><%= project.duration %></td>
         <td>
           <% link = OrbitHelper.url_to_plugin_show(project.to_param,'personal_project') %>
           <%= (link == "#" ? project.project_title : link_to(project.project_title, link , target: "blank")) %>