diff --git a/module/story/control.php b/module/story/control.php
index f499cc2126..ce6f57b782 100755
--- a/module/story/control.php
+++ b/module/story/control.php
@@ -2016,32 +2016,6 @@ class story extends control
 
     }
 
-    /**
-     * AJAX: Get user requirements.
-     *
-     * @param  int    $productID
-     * @param  int    $branchID
-     * @param  int    $moduleID
-     * @param  string $requirementList
-     * @access public
-     * @return void
-     */
-    public function ajaxGetURS(int $productID, string $branchID = '0', int $moduleID = 0, string $requirementList = '0')
-    {
-        $moduleIdList = $this->loadModel('tree')->getAllChildId($moduleID);
-
-        $URS = $this->story->getProductStoryPairs($productID, $branchID, $moduleIdList, 'active', 'id_desc', 0, '', 'requirement');
-
-        $items = array();
-        foreach($URS as $URID => $URTitle)
-        {
-            if(empty($URID)) continue;
-            $items[] = array('text' => $URTitle, 'value' => $URID);
-        }
-
-        return print(json_encode(array('name' => 'URS[]', 'multiple' => true, 'defaultValue' => $requirementList, 'items' => $items)));
-    }
-
     /**
      * 移除需求的孪生需求。
      * AJAX: Deleted story twin.
diff --git a/module/story/js/common.ui.js b/module/story/js/common.ui.js
index 60372b240a..72dd5b9253 100644
--- a/module/story/js/common.ui.js
+++ b/module/story/js/common.ui.js
@@ -44,43 +44,6 @@ window.toggleFeedback = function(obj)
     $('.feedbackBox').toggleClass('hidden', !feedbackSource.includes(source));
 }
 
-window.loadURS = function(e)
-{
-    const eventType = typeof e == 'undefined' ? '' : e.type;
-    const productID = $('[name=product]').val();
-
-    let requirementList = $('[name=URS]').val();
-    requirementList = requirementList ? encodeURIComponent(requirementList.join(',')) : '';
-
-    let moduleID = 0;
-    if(eventType == 'change') moduleID = $('[name=module]').val();
-    if(eventType == 'click' && !$(e.target).prop('checked')) moduleID = $('[name=module]').val();
-    if($('#loadURS').prop('checked')) moduleID = 0;
-
-    let branchID  = 0;
-    let $branches = $('input[name^=branches]');
-    if($branches.length > 0)
-    {
-        branchIdList = [];
-        $branches.each(function()
-        {
-            var currentBranch = $(this).val();
-            if(currentBranch == '') currentBranch = 0;
-            if(!branchIdList.includes(currentBranch)) branchIdList.push(currentBranch);
-        })
-        branchID = branchIdList.join(',');
-    }
-
-    var link = $.createLink('story', 'ajaxGetURS', 'productID=' + productID + '&branchID=' + branchID + '&moduleID=' + moduleID + '&requirementList=' + requirementList);
-    $.get(link, function(data)
-    {
-        data = JSON.parse(data);
-        $URS = $('#URS').zui('picker');
-        $URS.render({items: data.items});
-        $URS.$.setValue($URS.$.value);
-    })
-};
-
 window.loadGrade = function(e)
 {
     const parent = e.target.value;
@@ -144,5 +107,4 @@ window.loadBranch = function()
     if(typeof(branch) == 'undefined') branch = 0;
 
     window.loadProductPlans(productID, branch);
-    window.loadURS();
 };
diff --git a/module/story/js/edit.ui.js b/module/story/js/edit.ui.js
index 6e60b397e4..66259a6fdc 100644
--- a/module/story/js/edit.ui.js
+++ b/module/story/js/edit.ui.js
@@ -13,38 +13,19 @@ window.loadProduct = function()
         }
     }
 
-    if(productID != oldProductID)
+    if(isParent == '1')
     {
-        if(!confirm(changeProductTips))
-        {
-            $product.$.setValue(oldProductID.toString());
-            return false;
-        }
-    }
-
-    if(parentStory)
-    {
-        confirmLoadProduct = confirm(moveChildrenTips);
-        if(!confirmLoadProduct)
-        {
-            $product.$.setValue(oldProductID.toString());
-            return false;
-        }
+        zui.Modal.confirm(moveChildrenTips).then((result) => {
+            if(!result)
+            {
+                $product.$.setValue(oldProductID.toString(), true);
+                return false;
+            }
+        });
     }
 
     loadProductBranches(productID);
     loadProductReviewers(productID);
-    loadURS();
-
-    if(storyType == 'story')
-    {
-        var storyLink = $.createLink('story', 'ajaxGetParentStory', 'productID=' + productID);
-        var $parent   = $('#parent').zui('picker');
-        $.get(storyLink, function(data)
-        {
-            $parent.render({items: JSON.parse(data)});
-        });
-    }
 }
 
 window.linkStories = function(e)
diff --git a/module/story/lang/de.php b/module/story/lang/de.php
index 1436e57dbf..d4a85bb564 100644
--- a/module/story/lang/de.php
+++ b/module/story/lang/de.php
@@ -344,7 +344,7 @@ $lang->story->noStory                = 'Keine Stories. ';
 $lang->story->noRequirement          = 'No Requirements.';
 $lang->story->ignoreChangeStage      = 'The status of %s is Draft or Closed. This operation has been filtered.';
 $lang->story->cannotDeleteParent     = "Can not delete parent {$lang->SRCommon}";
-$lang->story->moveChildrenTips       = "Its Child {$lang->SRCommon} will be moved to the selected {$lang->productCommon} when editing the linked {$lang->productCommon} of Parent {$lang->SRCommon}.";
+$lang->story->moveChildrenTips       = "Are you sure to modify the product? After modification, all sub-level requirements of the requirement will also be changed accordingly.";
 $lang->story->changeTips             = 'The story associated with the requirements to change, click "Cancel" ignore this change, click "Confirm" to change the story.';
 $lang->story->estimateMustBeNumber   = 'Estimate value must be number.';
 $lang->story->estimateMustBePlus     = 'Estimated value cannot be negative';
diff --git a/module/story/lang/en.php b/module/story/lang/en.php
index d80a02abae..4c8f8f70f3 100644
--- a/module/story/lang/en.php
+++ b/module/story/lang/en.php
@@ -344,7 +344,7 @@ $lang->story->noStory                = 'No stories yet. ';
 $lang->story->noRequirement          = 'No requirements yet. ';
 $lang->story->ignoreChangeStage      = 'The status of %s is Draft or Closed. This operation has been filtered.';
 $lang->story->cannotDeleteParent     = "Can not delete parent {$lang->SRCommon}";
-$lang->story->moveChildrenTips       = "Its Child {$lang->SRCommon} will be moved to the selected {$lang->productCommon} when editing the linked {$lang->productCommon} of Parent {$lang->SRCommon}.";
+$lang->story->moveChildrenTips       = "Are you sure to modify the product? After modification, all sub-level requirements of the requirement will also be changed accordingly.";
 $lang->story->changeTips             = 'The story associated with the requirements to change, click "Cancel" ignore this change, click "Confirm" to change the story.';
 $lang->story->estimateMustBeNumber   = 'Estimate value must be number.';
 $lang->story->estimateMustBePlus     = 'Estimated value cannot be negative';
diff --git a/module/story/lang/fr.php b/module/story/lang/fr.php
index c5f7d279a1..c5b63c02f5 100644
--- a/module/story/lang/fr.php
+++ b/module/story/lang/fr.php
@@ -344,7 +344,7 @@ $lang->story->noStory                = "Aucune story pour l'instant. ";
 $lang->story->noRequirement          = 'No Requirements';
 $lang->story->ignoreChangeStage      = 'The status of %s is Draft or Closed. This operation has been filtered.';
 $lang->story->cannotDeleteParent     = "Impossible de supprimer {$lang->SRCommon} parent";
-$lang->story->moveChildrenTips       = "Its Child {$lang->SRCommon} will be moved to the selected {$lang->productCommon} when editing the linked {$lang->productCommon} of Parent {$lang->SRCommon}.";
+$lang->story->moveChildrenTips       = "Are you sure to modify the product? After modification, all sub-level requirements of the requirement will also be changed accordingly.";
 $lang->story->changeTips             = 'The story associated with the requirements to change, click "Cancel" ignore this change, click "Confirm" to change the story.';
 $lang->story->estimateMustBeNumber   = 'Estimate value must be number.';
 $lang->story->estimateMustBePlus     = 'Estimated value cannot be negative';
diff --git a/module/story/lang/zh-cn.php b/module/story/lang/zh-cn.php
index ff2ce62bd6..c3f5e694f8 100644
--- a/module/story/lang/zh-cn.php
+++ b/module/story/lang/zh-cn.php
@@ -344,7 +344,7 @@ $lang->story->noStory                = "暂时没有{$lang->SRCommon}。";
 $lang->story->noRequirement          = "暂时没有{$lang->URCommon}。";
 $lang->story->ignoreChangeStage      = "{$lang->SRCommon} %s 状态为草稿或已关闭，本次操作已被过滤。";
 $lang->story->cannotDeleteParent     = "不能删除父{$lang->SRCommon}";
-$lang->story->moveChildrenTips       = "修改父{$lang->SRCommon}的所属{$lang->productCommon}会将其下的子{$lang->SRCommon}也移动到所选{$lang->productCommon}下。";
+$lang->story->moveChildrenTips       = "确认修改所属产品吗，修改后，需求的所有子级需求也会跟随变更。";
 $lang->story->changeTips             = '该软件需求关联的用户需求有变更，点击“不变更”忽略此条变更，点击“变更”来进行该软件需求的变更。';
 $lang->story->estimateMustBeNumber   = '估算值必须是数字';
 $lang->story->estimateMustBePlus     = '估算值不能是负数';
diff --git a/module/story/model.php b/module/story/model.php
index fb4d74f899..6cc7556657 100644
--- a/module/story/model.php
+++ b/module/story/model.php
@@ -788,7 +788,11 @@ class storyModel extends model
         if($story->product != $oldStory->product)
         {
             $childStories = $this->getAllChildId($storyID, false);
-            foreach($childStories as $childStoryID) $this->updateStoryProduct($childStoryID, $story->product);
+            $story->id    = $storyID;
+            foreach($childStories as $childStoryID)
+            {
+                $this->updateStoryProduct($childStoryID, $story, $story->product);
+            }
         }
         if($story->grade != $oldStory->grade) $this->syncGrade($oldStory, $story);
         $parentChanged = $story->parent != $oldStory->parent;
@@ -843,13 +847,30 @@ class storyModel extends model
      * Update story product.
      *
      * @param  int    $storyID
+     * @param  object $parentID
      * @param  int    $productID
      * @access public
      * @return void
      */
-    public function updateStoryProduct(int $storyID, int $productID): void
+    public function updateStoryProduct(int $storyID, object $parent, int $productID): void
     {
-        $this->dao->update(TABLE_STORY)->set('product')->eq($productID)->where('id')->eq($storyID)->exec();
+        if($parent->id != $storyID)
+        {
+            $childPath = $this->dao->select('path')->from(TABLE_STORY)->where('id')->eq($storyID)->fetch('path');
+            $childPath = strstr($childPath, ",{$parent->id},");
+            $this->dao->update(TABLE_STORY)
+                 ->set('product')->eq($parent->product)
+                 ->set('module')->eq(0)
+                 ->set('root')->eq($parent->root)
+                 ->set('path')->eq($childPath)
+                 ->where('id')->eq($storyID)
+                 ->exec();
+        }
+        else
+        {
+            $this->dao->update(TABLE_STORY)->set('path')->eq(",{$storyID},")->where('id')->eq($storyID)->exec();
+        }
+
         $this->dao->update(TABLE_PROJECTSTORY)->set('product')->eq($productID)->where('story')->eq($storyID)->exec();
         $storyProjects  = $this->dao->select('project')->from(TABLE_PROJECTSTORY)->where('story')->eq($storyID)->orderBy('project')->fetchPairs('project', 'project');
         $linkedProjects = $this->dao->select('project')->from(TABLE_PROJECTPRODUCT)->where('project')->in($storyProjects)->andWhere('product')->eq($productID)->orderBy('project')->fetchPairs('project','project');
diff --git a/module/story/ui/edit.html.php b/module/story/ui/edit.html.php
index cfea9bb0fc..0505374cc2 100644
--- a/module/story/ui/edit.html.php
+++ b/module/story/ui/edit.html.php
@@ -42,14 +42,14 @@ data('activeMenuID', $story->type);
 jsVar('storyType', $story->type);
 jsVar('storyID', $story->id);
 jsVar('storyStatus', $story->status);
+jsVar('isParent', $story->isParent);
+jsVar('oldProductID', $story->product);
 jsVar('lastReviewer', explode(',', $lastReviewer));
 jsVar('storyReviewers', $storyReviewers);
 jsVar('reviewerNotEmpty', $lang->story->notice->reviewerNotEmpty);
-jsVar('oldProductID', $story->product);
 jsVar('twins', $story->twins);
 jsVar('relievedTwinsTip', $lang->story->relievedTwinsTip);
 jsVar('changeProductTips', $lang->story->changeProductTips);
-jsVar('parentStory', !empty($story->children));
 jsVar('moveChildrenTips', $lang->story->moveChildrenTips);
 jsVar('executionID', isset($objectID) ? $objectID : 0);
 jsVar('langTreeManage', $lang->tree->manage);
@@ -200,7 +200,7 @@ detailBody
         (
             setClass('mt-5'),
             set::title($lang->story->legendBasicInfo),
-            $story->parent <= 0 ? item
+            item
             (
                 set::trClass(zget($fields['product'], 'className', '')),
                 set::name($lang->story->product),
@@ -228,7 +228,7 @@ detailBody
                         ) : null
                     )
                 )
-            ) : null,
+            ),
             $story->parent > 0 && $product->type != 'normal' ? item
             (
                 set::name(sprintf($lang->product->branch, $lang->product->branchName[$product->type])),
diff --git a/module/story/zen.php b/module/story/zen.php
index 01eb0af628..16d9ac5474 100644
--- a/module/story/zen.php
+++ b/module/story/zen.php
@@ -1259,6 +1259,13 @@ class storyZen extends story
         if($this->post->linkStories)      $storyData->linkStories      = implode(',', array_unique($this->post->linkStories));
         if($this->post->linkRequirements) $storyData->linkRequirements = implode(',', array_unique($this->post->linkRequirements));
 
+        if($oldStory->product != $storyData->product)
+        {
+            $storyData->root   = $storyID;
+            $storyData->parent = 0;
+            $storyData->module = 0;
+        }
+
         return $this->loadModel('file')->processImgURL($storyData, $editorFields, $this->post->uid);
     }