diff --git a/module/story/lang/en.php b/module/story/lang/en.php
index 78ff05105a..a1230ac20a 100644
--- a/module/story/lang/en.php
+++ b/module/story/lang/en.php
@@ -284,6 +284,7 @@ $lang->story->estimateMustBeNumber = 'Estimate value must be number.';
 $lang->story->estimateMustBePlus   = 'Estimated value cannot be negative';
 $lang->story->confirmChangeBranch  = $lang->SRCommon . ' %s is linked to the plan of its linked branch. If the branch is edited, ' . $lang->SRCommon . ' will be removed from the plan of its linked branch. Do you want to continue edit ' . $lang->SRCommon . '?';
 $lang->story->confirmChangePlan    = $lang->SRCommon . ' %s is linked to the branch of its plan. If the branch is edited, ' . $lang->SRCommon . ' will be removed from the plan. Do you want to continue edit branch ?';
+$lang->story->errorDuplicateStory  = $lang->SRCommon . '%s not exist';
 
 $lang->story->form = new stdclass();
 $lang->story->form->area     = 'Scope';
diff --git a/module/story/lang/zh-cn.php b/module/story/lang/zh-cn.php
index ff0751f10c..e0303c441a 100644
--- a/module/story/lang/zh-cn.php
+++ b/module/story/lang/zh-cn.php
@@ -284,6 +284,7 @@ $lang->story->estimateMustBeNumber  = '估算值必须是数字';
 $lang->story->estimateMustBePlus    = '估算值不能是负数';
 $lang->story->confirmChangeBranch   = $lang->SRCommon . '%s已关联在之前所属分支的计划中，调整分支后，' . $lang->SRCommon . '将从之前所属分支的计划中移除，请确认是否继续修改上述' . $lang->SRCommon . '的分支。';
 $lang->story->confirmChangePlan     = $lang->SRCommon . '%s已关联在之前计划的所属分支中，调整分支后，' . $lang->SRCommon . '将会从计划中移除，请确认是否继续修改计划的所属分支。';
+$lang->story->errorDuplicateStory   = $lang->SRCommon . '%s不存在';
 
 $lang->story->form = new stdclass();
 $lang->story->form->area     = "该{$lang->SRCommon}所属范围";
diff --git a/module/story/model.php b/module/story/model.php
index d5eedc2706..0663530312 100644
--- a/module/story/model.php
+++ b/module/story/model.php
@@ -1553,6 +1553,16 @@ class storyModel extends model
             ->removeIF($this->post->closedReason != 'subdivided', 'childStories')
             ->get();
 
+        if(!empty($story->duplicateStory))
+        {
+            $duplicateStoryID = $this->dao->select('id')->from(TABLE_STORY)->where('id')->eq($story->duplicateStory)->fetch();
+            if(empty($duplicateStoryID))
+            {
+                dao::$errors[] = sprintf($this->lang->story->errorDuplicateStory, $story->duplicateStory);
+                return false;
+            }
+        }
+
         $this->lang->story->comment = $this->lang->comment;
         $this->dao->update(TABLE_STORY)->data($story, 'comment')
             ->autoCheck()