diff --git a/src/views/documentTool/documentSplit/modules/SplitTreeOrderModal.vue b/src/views/documentTool/documentSplit/modules/SplitTreeOrderModal.vue
index 00fbbde..fe4fc5b 100644
--- a/src/views/documentTool/documentSplit/modules/SplitTreeOrderModal.vue
+++ b/src/views/documentTool/documentSplit/modules/SplitTreeOrderModal.vue
@@ -7,12 +7,14 @@
     :maskClosable="false"
     :footer="null"
     :confirmLoading="confirmLoading"
+    :fullscreen.sync="fullscreen"
     @ok="handleOk"
     @cancel="handleCancel">
     <a-spin :spinning="confirmLoading">
       <a-tree :show-line="true"
               :show-icon="true"
               style="height: 50vh; overflow-y: auto"
+              :class="{fullscreen: fullscreen}"
               checkable
               :tree-data="treeData"
               :selected-keys="selectedKeys"
@@ -55,6 +57,7 @@ export default {
   data () {
     return {
       width: 600,
+      fullscreen: false,
       visible: false,
       confirmLoading: false,
       selectedKeys: [],
@@ -284,5 +287,10 @@ export default {
 </script>
 
 <style scoped lang="less">
-
+.fullscreen .tree-node-custom-title {
+  max-width: 90vw;
+}
+.tree-node-custom-title {
+  max-width: 460px;
+}
 </style>