diff --git a/src/views/documentTool/documentSplit/DocumentSplitDetail.vue b/src/views/documentTool/documentSplit/DocumentSplitDetail.vue
index 4538b60..962ec80 100644
--- a/src/views/documentTool/documentSplit/DocumentSplitDetail.vue
+++ b/src/views/documentTool/documentSplit/DocumentSplitDetail.vue
@@ -386,10 +386,18 @@ export default {
         // 拖拽到某个节点下方,就取该节点的序号
         if (dropPos > nodePos) {
           params.displaySeq = info.node.dataRef.displaySeq
+          // 递归拿到最内层的最后一个节点的序号
+          if (info.node.dataRef.children && info.node.dataRef.children.length) {
+            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
           const preNodeData = this.getPrevNode(this.treeData, info.node.eventKey)
           params.displaySeq = preNodeData ? preNodeData.displaySeq : 0
+          // 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)
+          }
         }
         params.sourceId = info.dragNode.eventKey
         // 拖拽到节点的父节点id
@@ -418,6 +426,19 @@ export default {
       }
       this.treeNodeSort({ sourceId, targetId, displaySeq })
     },
+    // 获取最底层叶子节点的序号
+    getLastLeafNode (children) {
+      let displaySeq = 0
+      while (true) {
+        if (children && children.length) {
+          displaySeq = children[children.length - 1].displaySeq
+          children = children[children.length - 1].children || []
+        } else {
+          break
+        }
+      }
+      return displaySeq
+    },
     // 发请求
     treeNodeSort (params) {
       this.loading = true
diff --git a/src/views/documentTool/documentSplit/modules/SplitTreeOrderModal.vue b/src/views/documentTool/documentSplit/modules/SplitTreeOrderModal.vue
index 2ad4f02..445ded7 100644
--- a/src/views/documentTool/documentSplit/modules/SplitTreeOrderModal.vue
+++ b/src/views/documentTool/documentSplit/modules/SplitTreeOrderModal.vue
@@ -116,10 +116,18 @@ export default {
         // 拖拽到某个节点之下,就取该节点的序号
         if (dropPos > nodePos) {
           params.displaySeq = info.node.dataRef.displaySeq
+          // 递归拿到最内层的最后一个节点的序号
+          if (info.node.dataRef.children && info.node.dataRef.children.length) {
+            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
           const preNodeData = this.getPrevNode(this.treeData, info.node.eventKey)
           params.displaySeq = preNodeData ? preNodeData.displaySeq : 0
+          // 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)
+          }
         }
         // 复选框勾选的节点
         params.sourceId = this.checkTreeKeys.checked.join(',')
@@ -146,7 +154,19 @@ export default {
       }
       this.treeNodeSort({ sourceId, targetId, displaySeq })
     },
-
+    // 获取最底层叶子节点的序号
+    getLastLeafNode (children) {
+      let displaySeq = 0
+      while (true) {
+        if (children && children.length) {
+          displaySeq = children[children.length - 1].displaySeq
+          children = children[children.length - 1].children || []
+        } else {
+          break
+        }
+      }
+      return displaySeq
+    },
     // 发请求
     treeNodeSort (params) {
       this.confirmLoading = true