diff --git a/app/controllers/admin/writings_controller.rb b/app/controllers/admin/writings_controller.rb
index 9ed489d..1eaea07 100644
--- a/app/controllers/admin/writings_controller.rb
+++ b/app/controllers/admin/writings_controller.rb
@@ -10,7 +10,27 @@ class Admin::WritingsController < OrbitMemberController
   before_action :allow_admin_only, :only => [:index, :setting]
 
   def index
-    @writings = Writing.order_by(:year=>'desc').page(params[:page]).per(10)
+    @filter = params[:filter]
+    @mq = params[:mq]
+    @new_filter = params[:new_filter]
+    @filter = {} if @filter.nil?
+    @filter['category'] = [] if @filter['category'].nil?
+    if @new_filter.present?
+      if @filter['category'].include? @new_filter[:id]
+        @filter['category'].delete(@new_filter[:id])
+      else
+        @filter['category'] << @new_filter[:id]
+      end
+    end
+    if params[:clear] != 'true'
+      if(params[:new_filter] != nil && params[:new_filter][:type] == 'category')
+        @writings = Writing.where(:category_id.in=> @filter['category']).order_by(:year=>'desc').page(params[:page]).per(10)
+      else
+        @writings = Writing.order_by(:year=>'desc').page(params[:page]).per(10)
+      end
+    else
+      redirect_to admin_writings_url
+    end
   end
 
   def new
@@ -179,6 +199,9 @@ class Admin::WritingsController < OrbitMemberController
 
   def set_plugin
     @plugin = OrbitApp::Plugin::Registration.all.select{|plugin| plugin.app_name.eql? 'Writing'}.first
+    @module_app = ModuleApp.where(:key=>'personal_writing').first
+    @module_app = ModuleApp.create(:key=>'personal_writing',:title=>'PersonalWriting','frontend_enable'=>true) if @module_app.nil?
+    @categories = @module_app.categories
   end
 
   private
diff --git a/app/controllers/personal_writings_controller.rb b/app/controllers/personal_writings_controller.rb
index 735274a..c6aeeb1 100644
--- a/app/controllers/personal_writings_controller.rb
+++ b/app/controllers/personal_writings_controller.rb
@@ -17,7 +17,7 @@ class PersonalWritingsController < ApplicationController
         "widget-title" => t("module_name.personal_writing"),
         "th_year" => t('personal_writing.year'),
         "th_month" => t('personal_writing.month'),
-        "th_writing_title" => t('module_name.personal_writing'),
+        "th_writing_title" => t('personal_writing.writing_title'),
         "th_other" => t('personal_writing.other'),
         "th_member" => t('users.name'),
         "th_detail" => t('detail')
diff --git a/app/helpers/admin/personal_writings_helper.rb b/app/helpers/admin/personal_writings_helper.rb
index 974c912..a1571ec 100644
--- a/app/helpers/admin/personal_writings_helper.rb
+++ b/app/helpers/admin/personal_writings_helper.rb
@@ -80,7 +80,7 @@ module Admin::PersonalWritingsHelper
 	def get_chart_data(year_start,year_end,role,type)
 	    case type
 	    when "category"
-	      jls = ResearchCategory.all
+	      jls = @module_app.categories
 	    end
 
 	    finaldata = []
@@ -96,7 +96,7 @@ module Admin::PersonalWritingsHelper
 	      (year_start..year_end).each do |year|
 	        # d1 = DateTime.new(year,1,1,0,0)
 	        # d2 = DateTime.new(year,12,31,23,59)   
-	        t = jl.researches.where(:year => year.to_s, :member_profile_id.in => mps).count rescue 0
+	        t = Writing.where(:year => year.to_s, :member_profile_id.in => mps,:category_id=>jl.id).count rescue 0
 	        data["data"][year.to_s] = t
 	      end
 	      finaldata << data
diff --git a/app/views/admin/writings/_clear_filters.html.erb b/app/views/admin/writings/_clear_filters.html.erb
new file mode 100644
index 0000000..d8ff178
--- /dev/null
+++ b/app/views/admin/writings/_clear_filters.html.erb
@@ -0,0 +1,3 @@
+<div class="filter-clear">
+  <%= link_to content_tag(:i, nil, :class => 'icons-cycle') + t(:clear), url_for(:filter => @filter, :sort => params[:sort], :direction => params[:direction], :clear => true, :type => type), :class => "btn btn-link btn-small" %>
+</div>
\ No newline at end of file
diff --git a/app/views/admin/writings/_filter.html.erb b/app/views/admin/writings/_filter.html.erb
new file mode 100644
index 0000000..3cce19f
--- /dev/null
+++ b/app/views/admin/writings/_filter.html.erb
@@ -0,0 +1,6 @@
+<div class="accordion-inner pagination-right" data-toggle="buttons-checkbox">     
+  <% @categories.each do |category| %>
+    <%= link_to category.title, url_for(:at=>params[:at],:filter => @filter, :new_filter => {:type => 'category', :id => category.id}, :sort => params[:sort], :direction => params[:direction], :sort_options => params[:sort_options]), :class => "btn btn-small #{' active' if (@filter['category'].include?(category.id.to_s) rescue nil)}" %>
+  <% end %> 
+  <%= render :partial => 'clear_filters', :locals => {:type => 'category'} %>
+</div>
\ No newline at end of file
diff --git a/app/views/admin/writings/index.html.erb b/app/views/admin/writings/index.html.erb
index 2ba486c..ac89feb 100644
--- a/app/views/admin/writings/index.html.erb
+++ b/app/views/admin/writings/index.html.erb
@@ -1,10 +1,29 @@
+<% content_for :page_specific_css do -%>
+  <%= stylesheet_link_tag "lib/filter" %>
+<% end -%>
+<!-- filter -->
+<div id="filter">
+  <ul class="nav nav-pills filter-nav pull-right">
+    <li class="accordion-group">
+      <div class="accordion-heading">
+        <a href="#collapse-category" data-toggle="collapse" data-parent="#filter" class="accordion-toggle"><%=t(:category)%></a>
+      </div>
+    </li>
+  </ul>
+  <div class="filter-group accordion-group">
+      <div class="accordion-body collapse" id="collapse-category">
+        <%= render :partial => "filter" %>
+      </div>
+  </div>
+</div>
+<!-- table -->
 <table class="table main-list">
   <thead>
     <tr>
       <th class="span1"><%= t(:category) %></th>
       <th class="span1"><%= t('personal_writing.year') %></th>
       <th class="span1"><%= t('personal_writing.month') %></th>
-      <th class="span3"><%= t('module_name.personal_writing') %></th>
+      <th class="span3"><%= t('personal_writing.writing_title') %></th>
       <th class="span1"><%= t('users.name') %></th>
     </tr>
   </thead>