diff --git a/src/views/documentTool/documentSplit/DocumentSplitDetail.vue b/src/views/documentTool/documentSplit/DocumentSplitDetail.vue
index f6e2079..01adfb1 100644
--- a/src/views/documentTool/documentSplit/DocumentSplitDetail.vue
+++ b/src/views/documentTool/documentSplit/DocumentSplitDetail.vue
@@ -391,9 +391,9 @@ export default {
             params.displaySeq = this.getLastLeafNode(info.node.dataRef.children)
           }
         } else {
-          // 拖拽到某个节点之上,就要找到上一个节点的序号，如果没有就传0
+          // 拖拽到某个节点之上,就要找到上一个节点的序号，如果没有就传父节点的序号
           const preNodeData = this.getPrevNode(this.treeData, info.node.eventKey)
-          params.displaySeq = preNodeData ? preNodeData.displaySeq : 0
+          params.displaySeq = preNodeData ? preNodeData.displaySeq : (this.getParentNode(this.treeData, info.node.eventKey) || {}).displaySeq
           // 递归拿到最内层的最后一个节点的序号
           if (preNodeData && preNodeData.children && preNodeData.children.length) {
             params.displaySeq = this.getLastLeafNode(preNodeData.children)
diff --git a/src/views/documentTool/documentSplit/modules/SplitTreeOrderModal.vue b/src/views/documentTool/documentSplit/modules/SplitTreeOrderModal.vue
index d04559e..60edcfb 100644
--- a/src/views/documentTool/documentSplit/modules/SplitTreeOrderModal.vue
+++ b/src/views/documentTool/documentSplit/modules/SplitTreeOrderModal.vue
@@ -128,9 +128,9 @@ export default {
             params.displaySeq = this.getLastLeafNode(info.node.dataRef.children || [])
           }
         } else {
-          // 拖拽到某个节点之上,就要找到上一个节点的序号，如果没有就传0
+          // 拖拽到某个节点之上,就要找到上一个节点的序号，如果没有就传父节点的序号
           const preNodeData = this.getPrevNode(this.treeData, info.node.eventKey)
-          params.displaySeq = preNodeData ? preNodeData.displaySeq : 0
+          params.displaySeq = preNodeData ? preNodeData.displaySeq : (this.getParentNode(this.treeData, info.node.eventKey) || {}).displaySeq
           // 递归拿到最内层的最后一个节点的序号
           if (preNodeData && preNodeData.children && preNodeData.children.length) {
             params.displaySeq = this.getLastLeafNode(preNodeData.children)