diff --git a/module/programplan/lang/en.php b/module/programplan/lang/en.php
index 6c3046d8c7..ab774d4154 100644
--- a/module/programplan/lang/en.php
+++ b/module/programplan/lang/en.php
@@ -51,6 +51,8 @@ $lang->programplan->exporting        = 'Exporting';
 $lang->programplan->exportFail       = 'Export failed';
 $lang->programplan->hideCriticalPath = 'Hide Critical Path';
 $lang->programplan->showCriticalPath = 'Show Critical Path';
+$lang->programplan->errorEnd         = "Project end date: %s, end date should be <= project end date.";
+$lang->programplan->errorBegin       = "Project begin date: %s, begin date should be >= project begin date.";
 
 $lang->programplan->milestoneList[1] = 'Yes';
 $lang->programplan->milestoneList[0] = 'No';
diff --git a/module/programplan/lang/zh-cn.php b/module/programplan/lang/zh-cn.php
index 5a0ad7c699..8107a944f5 100644
--- a/module/programplan/lang/zh-cn.php
+++ b/module/programplan/lang/zh-cn.php
@@ -51,6 +51,8 @@ $lang->programplan->exporting        = '导出';
 $lang->programplan->exportFail       = '导出失败';
 $lang->programplan->hideCriticalPath = '隐藏关键路径';
 $lang->programplan->showCriticalPath = '显示关键路径';
+$lang->programplan->errorBegin       = '阶段的开始时间不能小于所属项目的开始时间%s';
+$lang->programplan->errorEnd         = '阶段的结束时间不能大于所属项目的结束时间%s';
 
 $lang->programplan->milestoneList[1] = '是';
 $lang->programplan->milestoneList[0] = '否';
diff --git a/module/programplan/model.php b/module/programplan/model.php
index 591eff35cf..520ae8d226 100644
--- a/module/programplan/model.php
+++ b/module/programplan/model.php
@@ -435,6 +435,8 @@ class programplanModel extends model
             $datas[] = $plan;
         }
 
+        $planProject = $this->loadModel('project')->getByID($projectID);
+
         $totalPercent = 0;
         $totalDevType = 0;
         $milestone    = 0;
@@ -455,6 +457,16 @@ class programplanModel extends model
                 dao::$errors['message'][] = $this->lang->programplan->error->parentDuration;
                 return false;
             }
+            if($plan->begin < $planProject->begin)
+            {
+                dao::$errors['message'][] = sprintf($this->lang->programplan->errorBegin, $planProject->begin);
+                return false;
+            }
+            if($plan->end != '0000-00-00' and $plan->end > $planProject->end)
+            {
+                dao::$errors['message'][] = sprintf($this->lang->programplan->errorEnd, $planProject->end);
+                return false;
+            }
 
             if($plan->begin == '0000-00-00') $plan->begin = '';
             if($plan->end   == '0000-00-00') $plan->end   = '';