diff --git a/devui/tree/src/composables/use-merge-node.ts b/devui/tree/src/composables/use-merge-node.ts
new file mode 100644
index 0000000000000000000000000000000000000000..b5c8db7d460823f1bdbc4cd34e46395912f86527
--- /dev/null
+++ b/devui/tree/src/composables/use-merge-node.ts
@@ -0,0 +1,54 @@
+import { ref } from 'vue';
+
+export default function useMergeNode(data: Array<any>): any {
+
+
+  const mergeObject = (
+    treeItem,
+    childName = 'children',
+    labelName = 'label'
+  ): any => {
+    const { [childName]: children, [labelName]: label } = treeItem;
+    if (
+      Array.isArray(children) &&
+      children.length === 1 &&
+      children[0][childName] &&
+      children[0][childName].length === 1
+    ) {
+      return mergeObject(
+        Object.assign({}, children[0], {
+          [labelName]: `${label} \\ ${children[0][labelName]}`,
+        })
+      );
+    }
+    return treeItem;
+  };
+
+  const mergeNode = (
+    tree: Array<any>,
+    level = 0,
+    childName = 'children',
+    labelName = 'label'
+  ): Array<any> => {
+    return tree.map((item) => {
+      const { [childName]: children } = item;
+      if (!Array.isArray(children) || !children.length) {
+        return Object.assign({}, item, { level: level + 1 });
+      }
+      let currentObject = item;
+      if (children.length === 1) {
+        currentObject = mergeObject(item);
+      }
+      return Object.assign({}, currentObject, {
+        [childName]: mergeNode(currentObject[childName], level + 1, childName, labelName),
+        level: level + 1,
+      });
+    });
+  };
+
+  const mergeData = ref(mergeNode(data));
+
+  return {
+    mergeData,
+  };
+}
diff --git a/devui/tree/src/tree.tsx b/devui/tree/src/tree.tsx
index 17173f72fd1a340374ad851c4c01b4a577df5f5c..0d7fae875a7f2bb3fe14f82ef15542b46bd4ce04 100644
--- a/devui/tree/src/tree.tsx
+++ b/devui/tree/src/tree.tsx
@@ -2,6 +2,7 @@ import { defineComponent, toRefs } from 'vue'
 import { treeProps, TreeProps } from './tree-types'
 import { flatten } from './util'
 import useToggle from './composables/use-toggle'
+import useMergeNode from './composables/use-merge-node'
 import useHighlightNode from './composables/use-highlight'
 import IconOpen from './assets/open.svg'
 import IconClose from './assets/close.svg'
@@ -15,7 +16,9 @@ export default defineComponent({
     const { data } = toRefs(props)
     const flatData = flatten(data.value)
 
-    const { openedData, toggle } = useToggle(data.value)
+    const { mergeData } = useMergeNode(data.value)
+    
+    const { openedData, toggle } = useToggle(mergeData.value)
     const { nodeClassNameReflect, handleInitNodeClassNameReflect, handleClickOnNode } = useHighlightNode()
 
     const Indent = () => {
diff --git a/docs/components/tree/index.md b/docs/components/tree/index.md
index 5b76cc1b562d89dab310596ce3bffa646020270a..f2c350b69f3621f65a0f17cb3c26b670e69cc2f1 100644
--- a/docs/components/tree/index.md
+++ b/docs/components/tree/index.md
@@ -171,4 +171,103 @@ export default defineComponent({
 
 :::
 
+### 合并节点
 
+:::demo 当节点下只有一个子节点时，合并该节点。
+
+```vue
+<template>
+  <d-tree :data="data"></d-tree>
+</template>
+
+<script>
+import { defineComponent, ref } from 'vue'
+
+export default defineComponent({
+  setup() {
+
+    const data = ref([
+      {
+        label: 'parent node 1',
+        children: [
+          {
+            label: 'parent node 11',
+            open: true,
+            children: [
+              {
+                label: 'parent node 111',
+                children: [
+                  {
+                    label: 'parent node 1111',
+                    children: [
+                      {
+                        label: 'leaf node 11111',
+                      }
+                    ]
+                  }
+                ]
+              }
+            ]
+          },
+        ]
+      },
+      {
+        label: 'parent node 2',
+        children: [
+          {
+            label: 'parent node 21',
+            open: true,
+            children: [
+              {
+                label: 'leaf node 211',
+              },
+              {
+                label: 'leaf node 212',
+              },
+              {
+                label: 'leaf node 213',
+              },
+              {
+                label: 'leaf node 214',
+              },
+              {
+                label: 'leaf node 215',
+              },
+            ]
+          },
+        ]
+      },
+      {
+        label: 'parent node 3',
+        children: [
+          {
+            label: 'leaf node 31',
+            children: [
+              {
+                label: 'leaf node 311',
+                children: [
+                  {
+                    label: 'leaf node 3111',
+                  }
+                ]
+              }
+            ]
+          },
+          {
+            label: 'leaf node 32',
+          },
+          {
+            label: 'leaf node 33',
+          }
+        ]
+      }
+    ]);
+    
+    return {
+      data
+    }
+  }
+})
+</script>
+```
+:::
\ No newline at end of file