diff --git a/config/filter.php b/config/filter.php
index c700ab2094..ac0f39bb27 100755
--- a/config/filter.php
+++ b/config/filter.php
@@ -138,6 +138,7 @@ $filter->svn->cat                 = new stdclass();
 $filter->svn->diff                = new stdclass();
 $filter->task->create             = new stdclass();
 $filter->task->export             = new stdclass();
+$filter->task->recordestimate     = new stdclass();
 $filter->execution->default       = new stdclass();
 $filter->execution->story         = new stdclass();
 $filter->testcase->default        = new stdclass();
@@ -298,8 +299,9 @@ $filter->story->track->cookie['preProductID']       = 'int';
 
 $filter->productplan->browse->cookie['viewType'] = 'code';
 
-$filter->task->create->cookie['lastTaskModule'] = 'int';
-$filter->task->export->cookie['checkedItem']    = 'reg::checked';
+$filter->task->create->cookie['lastTaskModule']         = 'int';
+$filter->task->export->cookie['checkedItem']            = 'reg::checked';
+$filter->task->recordestimate->cookie['taskEffortFold'] = 'reg::checked';
 
 $filter->execution->default->cookie['kanbanview']         = 'code';
 $filter->execution->story->cookie['storyPreExecutionID']  = 'int';
diff --git a/module/task/config.php b/module/task/config.php
index 8a6a6a8493..f2202e1f3f 100644
--- a/module/task/config.php
+++ b/module/task/config.php
@@ -105,17 +105,17 @@ $config->task->datatable->fieldList['deadline']['control'] = 'date';
 
 $config->task->datatable->fieldList['estimate']['title']    = 'estimateAB';
 $config->task->datatable->fieldList['estimate']['fixed']    = 'no';
-$config->task->datatable->fieldList['estimate']['width']    = '55';
+$config->task->datatable->fieldList['estimate']['width']    = '65';
 $config->task->datatable->fieldList['estimate']['required'] = 'no';
 
 $config->task->datatable->fieldList['consumed']['title']    = 'consumedAB';
 $config->task->datatable->fieldList['consumed']['fixed']    = 'no';
-$config->task->datatable->fieldList['consumed']['width']    = '55';
+$config->task->datatable->fieldList['consumed']['width']    = '65';
 $config->task->datatable->fieldList['consumed']['required'] = 'no';
 
 $config->task->datatable->fieldList['left']['title']    = 'leftAB';
 $config->task->datatable->fieldList['left']['fixed']    = 'no';
-$config->task->datatable->fieldList['left']['width']    = '55';
+$config->task->datatable->fieldList['left']['width']    = '65';
 $config->task->datatable->fieldList['left']['required'] = 'no';
 
 $config->task->datatable->fieldList['progress']['title']    = 'progressAB';
diff --git a/module/task/control.php b/module/task/control.php
index c3255549d5..f9a8a9dc9d 100755
--- a/module/task/control.php
+++ b/module/task/control.php
@@ -1219,7 +1219,7 @@ class task extends control
         {
             if(empty($orderBy))
             {
-                $orderBy = 'order_asc,id';
+                $orderBy = 'id_desc';
             }
             else
             {
@@ -1227,14 +1227,35 @@ class task extends control
                 $orderBy .= preg_replace('/(order_|date_)/', ',id_', $orderBy);
             }
         }
-        if(!$orderBy) $orderBy = 'date_asc';
 
-        $this->view->title   = $this->lang->task->record;
-        $this->view->task    = $task;
-        $this->view->from    = $from;
-        $this->view->orderBy = $orderBy;
-        $this->view->efforts = $this->task->getTaskEstimate($taskID, '', '', $orderBy);
-        $this->view->users   = $this->loadModel('user')->getPairs('noclosed|noletter');
+        if(!$orderBy) $orderBy = 'id_desc';
+
+        /* Set the fold state of the current task. */
+        $referer = strtolower($_SERVER['HTTP_REFERER']);
+        if(strpos($referer, 'recordestimate') and $this->cookie->taskEffortFold !== false)
+        {
+            $taskEffortFold = $this->cookie->taskEffortFold;
+        }
+        else
+        {
+            $taskEffortFold = 0;
+            $currentAccount = $this->app->user->account;
+            if($task->assignedTo == $currentAccount) $taskEffortFold = 1;
+            if(!empty($task->team))
+            {
+                $teamMember = array_column($task->team, 'account');
+                if(in_array($currentAccount, $teamMember)) $taskEffortFold = 1;
+            }
+        }
+
+        $this->view->title          = $this->lang->task->record;
+        $this->view->task           = $task;
+        $this->view->from           = $from;
+        $this->view->orderBy        = $orderBy;
+        $this->view->efforts        = $this->task->getTaskEstimate($taskID, '', '', $orderBy);
+        $this->view->users          = $this->loadModel('user')->getPairs('noclosed|noletter');
+        $this->view->taskEffortFold = $taskEffortFold;
+
         $this->display();
     }
 
diff --git a/module/task/css/recordestimate.css b/module/task/css/recordestimate.css
index 05d5323044..5ead61fb66 100644
--- a/module/task/css/recordestimate.css
+++ b/module/task/css/recordestimate.css
@@ -21,3 +21,8 @@
 
 .table.has-sort-head thead>tr>th>a:after, .table.has-sort-head thead>tr>th>a:before {top: -7px;}
 .table.has-sort-head thead>tr>th>a:hover, .table.has-sort-head thead>tr>th>a:hover:after, .table.has-sort-head thead>tr>th>a:hover:before {color: #000;}
+
+#toggleFoldIcon:hover {cursor: pointer;}
+#toggleFoldIcon .icon-border {width: 20px; height: 20px; border-radius: 8px; border: 1px solid #D5E5FF;}
+#toggleFoldIcon .icon-border > .icon {color: #3785FF;}
+#toggleFoldIcon .text {color: #3785FF;}
diff --git a/module/task/js/recordestimate.js b/module/task/js/recordestimate.js
index e10c2adf66..c539fc9fc5 100644
--- a/module/task/js/recordestimate.js
+++ b/module/task/js/recordestimate.js
@@ -74,4 +74,33 @@ $(function()
     {
         $(this).prev().datetimepicker('show');
     });
+
+    $('#toggleFoldIcon').click(function()
+    {
+        var fold  = $(this).find('.icon-angle-down').length > 0;
+        var $icon = $(this).find('.icon-border > i');
+        var $text = $(this).find('.text');
+
+        $.cookie('taskEffortFold', fold ? 0 : 1);
+
+        if(fold)
+        {
+            /* Update icon and text. */
+            $icon.removeClass('icon-angle-down')
+                .addClass('icon-angle-top');
+            $text.text(foldEffort);
+
+            /* Show all efforts. */
+            $('.taskEffort > tbody > tr').removeClass('hidden');
+        }
+        else
+        {
+            $icon.removeClass('icon-angle-top')
+                .addClass('icon-angle-down');
+            $text.text(unfoldEffort);
+
+            /* Efforts whose number is greater than 3 are hidden. */
+            $('.taskEffort > tbody > tr').filter(':gt(2)').addClass('hidden');
+        }
+    });
 })
diff --git a/module/task/lang/de.php b/module/task/lang/de.php
index f0a1f3ad84..6c33292cb2 100644
--- a/module/task/lang/de.php
+++ b/module/task/lang/de.php
@@ -60,6 +60,8 @@ $lang->task->replace             = 'Replace';
 $lang->task->myEffort            = 'My Effort';
 $lang->task->allEffort           = 'Team Effort';
 $lang->task->teamOrder           = 'Order';
+$lang->task->unfoldEffort        = 'Unfold Effort';
+$lang->task->foldEffort          = 'Fold Effort';
 
 $lang->task->common            = 'Aufgabe';
 $lang->task->id                = 'ID';
diff --git a/module/task/lang/en.php b/module/task/lang/en.php
index ec3982d903..9c8d69c9ee 100755
--- a/module/task/lang/en.php
+++ b/module/task/lang/en.php
@@ -60,6 +60,8 @@ $lang->task->replace             = 'Replace';
 $lang->task->myEffort            = 'My Effort';
 $lang->task->allEffort           = 'Team Effort';
 $lang->task->teamOrder           = 'Order';
+$lang->task->unfoldEffort        = 'Unfold Effort';
+$lang->task->foldEffort          = 'Fold Effort';
 
 $lang->task->common            = 'Task';
 $lang->task->id                = 'ID';
diff --git a/module/task/lang/fr.php b/module/task/lang/fr.php
index 0b2b1eb1e2..b3fa98a347 100644
--- a/module/task/lang/fr.php
+++ b/module/task/lang/fr.php
@@ -60,6 +60,8 @@ $lang->task->replace             = 'Replace';
 $lang->task->myEffort            = 'My Effort';
 $lang->task->allEffort           = 'Team Effort';
 $lang->task->teamOrder           = 'Order';
+$lang->task->unfoldEffort        = 'Unfold Effort';
+$lang->task->foldEffort          = 'Fold Effort';
 
 $lang->task->common            = 'Tâche';
 $lang->task->id                = 'ID';
diff --git a/module/task/lang/zh-cn.php b/module/task/lang/zh-cn.php
index 506c414896..f49cab8813 100755
--- a/module/task/lang/zh-cn.php
+++ b/module/task/lang/zh-cn.php
@@ -60,6 +60,8 @@ $lang->task->replace             = '替换';
 $lang->task->myEffort            = '我的日志';
 $lang->task->allEffort           = '团队日志';
 $lang->task->teamOrder           = '工序';
+$lang->task->unfoldEffort        = '展开日志';
+$lang->task->foldEffort          = '收起日志';
 
 $lang->task->common            = '任务';
 $lang->task->id                = '编号';
diff --git a/module/task/view/lineareffort.html.php b/module/task/view/lineareffort.html.php
index c6677f2380..8cdf788056 100644
--- a/module/task/view/lineareffort.html.php
+++ b/module/task/view/lineareffort.html.php
@@ -50,7 +50,7 @@ foreach($efforts as $key => $effort)
     <div class='tab-content'>
       <div class='tab-pane' id='legendMyEffort'>
         <?php if(!empty($myOrders)):?>
-        <table class='table table-bordered table-fixed table-recorded has-sort-head'>
+        <table class='table table-bordered table-fixed table-recorded has-sort-head taskEffort'>
           <thead>
             <tr class='text-center'>
               <?php
@@ -69,11 +69,13 @@ foreach($efforts as $key => $effort)
             </tr>
           </thead>
           <tbody>
+            <?php $i = 1;?>
             <?php foreach($myOrders as $order => $count):?>
             <?php $showOrder = false;?>
             <?php foreach($myEfforts[$order] as $effort):?>
             <?php if($effort->account != $this->app->user->account) continue;?>
-            <tr class="text-center">
+            <?php $hidden = ($taskEffortFold and $i > 3) ? 'hidden' : ''?>
+            <tr class="text-center <?php echo $hidden;?>">
               <?php if(!$showOrder):?>
               <td rowspan='<?php echo $count;?>'><?php echo $allOrders[$order];?></td>
               <?php $showOrder = true;?>
@@ -93,10 +95,17 @@ foreach($efforts as $key => $effort)
                 ?>
               </td>
             </tr>
+            <?php $i ++;?>
             <?php endforeach;?>
             <?php endforeach;?>
           </tbody>
         </table>
+        <div id='toggleFoldIcon'>
+          <?php $icon     = $taskEffortFold ? 'icon-angle-down' : 'icon-angle-top'?>
+          <?php $iconText = $taskEffortFold ? $lang->task->unfoldEffort : $lang->task->foldEffort;?>
+          <span class='icon-border'><i class="icon <?php echo $icon;?>"></i></span>
+          <span class='text'><?php echo $iconText;?></span>
+        </div>
         <?php endif;?>
       </div>
       <div class='tab-pane' id='legendAllEffort'>
diff --git a/module/task/view/recordestimate.html.php b/module/task/view/recordestimate.html.php
index 404b281ae2..9302b6c137 100644
--- a/module/task/view/recordestimate.html.php
+++ b/module/task/view/recordestimate.html.php
@@ -12,6 +12,9 @@
 ?>
 <?php include '../../common/view/header.lite.html.php';?>
 <?php include '../../common/view/datepicker.html.php';?>
+<?php js::set('foldEffort', $lang->task->foldEffort);?>
+<?php js::set('unfoldEffort', $lang->task->unfoldEffort);?>
+<?php js::set('taskID', $task->id);?>
 <?php if(!$this->task->canOperateEffort($task) and empty($myOrders)):?>
 <style>#mainContent {min-height: unset;}</style>
 <?php endif;?>
@@ -59,7 +62,7 @@ if(!empty($members) && $task->mode == 'linear')
     <?php if(!empty($task->team) and $task->mode == 'linear'):?>
     <?php include __DIR__ . '/lineareffort.html.php';?>
     <?php else:?>
-    <table class='table table-bordered table-fixed table-recorded has-sort-head'>
+    <table class='table table-bordered table-fixed table-recorded has-sort-head taskEffort'>
       <thead>
         <tr class='text-center'>
           <?php $vars = "taskID=$task->id&from=$from&orderBy=%s";?>
@@ -72,8 +75,10 @@ if(!empty($members) && $task->mode == 'linear')
         </tr>
       </thead>
       <tbody>
+        <?php $i = 1;?>
         <?php foreach($efforts as $effort):?>
-        <tr class="text-center">
+        <?php $hidden = ($taskEffortFold and $i > 3) ? 'hidden' : ''?>
+        <tr class="text-center <?php echo $hidden;?>">
           <td><?php echo $effort->date;?></td>
           <td><?php echo zget($users, $effort->account);?></td>
           <td class="text-left" title="<?php echo $effort->work;?>"><?php echo $effort->work;?></td>
@@ -87,9 +92,18 @@ if(!empty($members) && $task->mode == 'linear')
             ?>
           </td>
         </tr>
+        <?php $i ++;?>
         <?php endforeach;?>
       </tbody>
     </table>
+    <?php if(count($efforts) > 3):?>
+    <div id='toggleFoldIcon'>
+      <?php $icon     = $taskEffortFold ? 'icon-angle-down' : 'icon-angle-top'?>
+      <?php $iconText = $taskEffortFold ? $lang->task->unfoldEffort : $lang->task->foldEffort;?>
+      <span class='icon-border'><i class="icon <?php echo $icon;?>"></i></span>
+      <span class='text'><?php echo $iconText;?></span>
+    </div>
+    <?php endif;?>
     <?php endif;?>
     <?php endif;?>
     <?php if(!$this->task->canOperateEffort($task) and empty($myOrders)):?>