diff --git a/module/programplan/model.php b/module/programplan/model.php
index cda98aade1..4daf9f6a72 100755
--- a/module/programplan/model.php
+++ b/module/programplan/model.php
@@ -216,8 +216,23 @@ class programplanModel extends model
         /* Judge whether to display tasks under the stage. */
         if(empty($selectCustom)) $selectCustom = $this->loadModel('setting')->getItem("owner={$this->app->user->account}&module=programplan&section=browse&key=stageCustom");
 
+        $begin        = $end = helper::today();
+        $deadlineList = array();
+        foreach($tasksGroup as $group => $tasks)
+        {
+            foreach($tasks as $taskID => $task)
+            {
+                $deadline = helper::isZeroDate($task->deadline) && !empty($plans[$task->execution]->end) ? $plans[$task->execution]->end : $task->deadline;
+                if(helper::isZeroDate($deadline)) continue;
+
+                $begin = $deadline < $begin ? $deadline : $begin;
+                $deadlineList[$taskID] = $deadline;
+            }
+        }
+
         $groupID = 0;
         $datas['data'] = array();
+        $workingDays   = $this->loadModel('holiday')->getActualWorkingDays($begin, $end);
         foreach($tasksGroup as $group => $tasks)
         {
             $groupID ++;
@@ -247,6 +262,19 @@ class programplanModel extends model
                 $stageIndex[$groupKey]['totalConsumed'] += $task->consumed;
                 $stageIndex[$groupKey]['totalReal']     += $task->left + $task->consumed;
                 $stageIndex[$groupKey]['totalEstimate'] += $task->estimate;
+
+                /* Delayed or not?. */
+                $isNotCancel    = !in_array($task->status, array('cancel', 'closed')) || ($task->status == 'closed' && !helper::isZeroDate($task->finishedDate) && $task->closedReason != 'cancel');
+                $isComputeDelay = $isNotCancel && !empty($deadlineList[$taskID]);
+                if($isComputeDelay) $task = $this->task->computeDelay($task, $deadlineList[$taskID], $workingDays);
+
+                $data->delay     = $this->lang->programplan->delayList[0];
+                $data->delayDays = 0;
+                if(isset($task->delay) && $task->delay > 0)
+                {
+                    $data->delay     = $this->lang->programplan->delayList[1];
+                    $data->delayDays = $task->delay;
+                }
             }
 
             /* Calculate group realBegan and realEnd. */