diff --git a/apps/pc_backend/modules/communityTopic/actions/actions.class.php b/apps/pc_backend/modules/communityTopic/actions/actions.class.php
index 23557bb..b58c782 100644
--- a/apps/pc_backend/modules/communityTopic/actions/actions.class.php
+++ b/apps/pc_backend/modules/communityTopic/actions/actions.class.php
@@ -42,6 +42,7 @@ public function executeTopicList(sfWebRequest $request)
     {
       $this->pager->setQuery($this->form->getQuery());
     }
+    $this->pager->setQuery($this->pager->getQuery()->orderBy('created_at DESC'));
     $this->pager->setPage($request->getParameter('page', 1));
     $this->pager->init();
     return sfView::SUCCESS;
@@ -82,6 +83,7 @@ public function executeTopicCommentList(sfWebRequest $request)
     {
       $this->pager->setQuery($this->form->getQuery());
     }
+    $this->pager->setQuery($this->pager->getQuery()->orderBy('created_at DESC'));
     $this->pager->setPage($request->getParameter('page', 1));
     $this->pager->init();
     return sfView::SUCCESS;
@@ -122,6 +124,7 @@ public function executeEventList(sfWebRequest $request)
     {
       $this->pager->setQuery($this->form->getQuery());
     }
+    $this->pager->setQuery($this->pager->getQuery()->orderBy('created_at DESC'));
     $this->pager->setPage($request->getParameter('page', 1));
     $this->pager->init();
     return sfView::SUCCESS;
@@ -202,6 +205,7 @@ public function executeEventCommentList(sfWebRequest $request)
     {
       $this->pager->setQuery($this->form->getQuery());
     }
+    $this->pager->setQuery($this->pager->getQuery()->orderBy('created_at DESC'));
     $this->pager->setPage($request->getParameter('page', 1));
     $this->pager->init();
     return sfView::SUCCESS;
diff --git a/test/functional/pc_backend/communityTopicEventCommentListOrderingTest.php b/test/functional/pc_backend/communityTopicEventCommentListOrderingTest.php
new file mode 100644
index 0000000..79f3258
--- /dev/null
+++ b/test/functional/pc_backend/communityTopicEventCommentListOrderingTest.php
@@ -0,0 +1,55 @@
+<?php
+
+include(dirname(__FILE__).'/../../bootstrap/functional.php');
+include(dirname(__FILE__).'/../../bootstrap/database.php');
+
+$_app = 'pc_backend';
+$browser = new opTestFunctional(new opBrowser(), new lime_test(null, new lime_output_color()));
+$browser
+  ->info('Login')
+  ->get('/default/login')
+  ->click('ログイン', array('admin_user' => array(
+    'username' => 'admin',
+    'password' => 'password',
+  )))
+  ->with('user')->isAuthenticated();
+
+$browser->get('/communityTopic/topicList')
+  ->with('request')->begin()
+    ->isParameter('module', 'communityTopic')
+    ->isParameter('action', 'topicList')
+  ->end()
+  ->with('response')->begin()
+    ->isStatusCode(200)
+  ->end()
+;
+
+$browser->get('/communityTopic/eventList')
+  ->with('request')->begin()
+    ->isParameter('module', 'communityTopic')
+    ->isParameter('action', 'eventList')
+  ->end()
+  ->with('response')->begin()
+    ->isStatusCode(200)
+  ->end()
+;
+
+$browser->get('/communityTopic/topicCommentList')
+  ->with('request')->begin()
+    ->isParameter('module', 'communityTopic')
+    ->isParameter('action', 'topicCommentList')
+  ->end()
+  ->with('response')->begin()
+    ->isStatusCode(200)
+  ->end()
+;
+
+$browser->get('/communityTopic/eventCommentList')
+  ->with('request')->begin()
+    ->isParameter('module', 'communityTopic')
+    ->isParameter('action', 'eventCommentList')
+  ->end()
+  ->with('response')->begin()
+    ->isStatusCode(200)
+  ->end()
+;
\ No newline at end of file