diff --git a/docs/zh-CN/components/form/treeselect.md b/docs/zh-CN/components/form/treeselect.md
index bc16ea3a2..648103d58 100755
--- a/docs/zh-CN/components/form/treeselect.md
+++ b/docs/zh-CN/components/form/treeselect.md
@@ -300,6 +300,28 @@ order: 60
 }
 ```
 
+## 搜索选项
+
+> `2.7.1` 及以上版本
+
+配置`autoComplete`接口可以实现从远程数据搜索目标结果，搜索的关键字段为`term`，注意搜索的逻辑需要在服务端实现。
+
+```schema: scope="body"
+{
+    "type":"form",
+    "api":"/api/mock2/form/saveForm",
+    "body":[
+        {
+            "type":"tree-select",
+            "name":"tree",
+            "label":"Tree",
+            "autoComplete":"/api/mock2/tree/search?term=$term",
+            "source":"/api/mock2/tree/search"
+        }
+    ]
+}
+```
+
 ## 属性表
 
 更多用法，见 [InputTree](./input-tree)
diff --git a/mock/cfc/mock/tree/search.js b/mock/cfc/mock/tree/search.js
new file mode 100644
index 000000000..27eb3df8f
--- /dev/null
+++ b/mock/cfc/mock/tree/search.js
@@ -0,0 +1,183 @@
+/**
+ * @file tree/autoComplete
+ * @desc 树形结构的自动搜索
+ */
+
+const treeOptions = [
+  {
+    label: 'node-0',
+    value: 'node-0',
+    children: [
+      {
+        label: 'node-0-0',
+        value: 'node-0-0',
+        children: [
+          {
+            label: 'node-0-0-0',
+            value: 'node-0-0-0',
+            children: [
+              {
+                label: 'node-0-0-0-0',
+                value: 'node-0-0-0-0'
+              },
+              {
+                label: 'node-0-0-0-1',
+                value: 'node-0-0-0-1'
+              },
+              {
+                label: 'node-0-0-0-2',
+                value: 'node-0-0-0-2'
+              }
+            ]
+          },
+          {
+            label: 'node-0-0-1',
+            value: 'node-0-0-1',
+            children: [
+              {
+                label: 'node-0-0-1-0',
+                value: 'node-0-0-1-0'
+              }
+            ]
+          },
+          {
+            label: 'node-0-0-2',
+            value: 'node-0-0-2',
+            children: [
+              {
+                label: 'node-0-0-2-0',
+                value: 'node-0-0-2-0'
+              },
+              {
+                label: 'node-0-0-2-1',
+                value: 'node-0-0-2-1'
+              },
+              {
+                label: 'node-0-0-2-2',
+                value: 'node-0-0-2-2'
+              },
+              {
+                label: 'node-0-0-2-3',
+                value: 'node-0-0-2-3'
+              }
+            ]
+          }
+        ]
+      },
+      {
+        label: 'node-0-1',
+        value: 'node-0-1',
+        children: [
+          {
+            label: 'node-0-1-0',
+            value: 'node-0-1-0',
+            children: [
+              {
+                label: 'node-0-1-0-0',
+                value: 'node-0-1-0-0'
+              },
+              {
+                label: 'node-0-1-0-1',
+                value: 'node-0-1-0-1'
+              }
+            ]
+          },
+          {
+            label: 'node-0-1-1',
+            value: 'node-0-1-1',
+            children: [
+              {
+                label: 'node-0-1-1-0',
+                value: 'node-0-1-1-0'
+              },
+              {
+                label: 'node-0-1-1-1',
+                value: 'node-0-1-1-1'
+              },
+              {
+                label: 'node-0-1-1-2',
+                value: 'node-0-1-1-2'
+              }
+            ]
+          }
+        ]
+      }
+    ]
+  },
+  {
+    label: 'node-1',
+    value: 'node-1',
+    children: [
+      {
+        label: 'node-1-0',
+        value: 'node-1-0'
+      }
+    ]
+  },
+  {
+    label: 'node-2',
+    value: 'node-2'
+  },
+  {
+    label: 'node-3',
+    value: 'node-3',
+    children: [
+      {
+        label: 'node-3-0',
+        value: 'node-3-0',
+        children: [
+          {
+            label: 'node-3-0-0',
+            value: 'node-3-0-0'
+          },
+          {
+            label: 'node-3-0-1',
+            value: 'node-3-0-1'
+          },
+          {
+            label: 'node-3-0-2',
+            value: 'node-3-0-2'
+          },
+          {
+            label: 'node-3-0-3',
+            value: 'node-3-0-3'
+          }
+        ]
+      }
+    ]
+  }
+];
+
+function searchNode(keyword) {
+  const search = data => {
+    const matched = [];
+
+    data.forEach(node => {
+      if (node.value && ~node.value.indexOf(keyword)) {
+        matched.push({...node});
+      } else if (node.children) {
+        const filtered = search(node.children);
+
+        if (filtered.length) {
+          matched.push({...node, children: filtered});
+        }
+      }
+    });
+
+    return matched;
+  };
+
+  return search(treeOptions);
+}
+
+module.exports = function (req, res) {
+  const term = req.query.term || '';
+
+  res.json({
+    status: 0,
+    msg: '',
+    data: {
+      options: term ? searchNode(term) : treeOptions
+    }
+  });
+};
diff --git a/packages/amis/src/renderers/Form/TreeSelect.tsx b/packages/amis/src/renderers/Form/TreeSelect.tsx
index 39d15194c..dcc8ea41a 100644
--- a/packages/amis/src/renderers/Form/TreeSelect.tsx
+++ b/packages/amis/src/renderers/Form/TreeSelect.tsx
@@ -163,6 +163,9 @@ export default class TreeSelectControl extends React.Component<
   targetRef = (ref: any) =>
     (this.target = ref ? (findDOMNode(ref) as HTMLElement) : null);
 
+  /** source数据源是否已加载 */
+  sourceLoaded: boolean = false;
+
   constructor(props: TreeSelectProps) {
     super(props);
 
@@ -183,7 +186,6 @@ export default class TreeSelectControl extends React.Component<
       leading: false
     });
     this.handleInputKeyDown = this.handleInputKeyDown.bind(this);
-
     this.loadRemote = debouce(this.loadRemote.bind(this), 250, {
       trailing: true,
       leading: false
@@ -194,6 +196,10 @@ export default class TreeSelectControl extends React.Component<
     this.loadRemote('');
   }
 
+  componentWillUnmount() {
+    this.sourceLoaded = false;
+  }
+
   open(fn?: () => void) {
     if (this.props.disabled) {
       return;
@@ -228,7 +234,11 @@ export default class TreeSelectControl extends React.Component<
   }
 
   handleKeyPress(e: React.KeyboardEvent) {
-    if (e.key === ' ') {
+    /**
+     * 考虑到label/value中有空格的case
+     * 这里使用组合键关闭 win：shift + space，mac：shift + space
+     */
+    if (e.key === ' ' && e.shiftKey) {
       this.handleOutClick(e as any);
       e.preventDefault();
     }
@@ -353,9 +363,15 @@ export default class TreeSelectControl extends React.Component<
   }
 
   async loadRemote(input: string) {
-    const {autoComplete, env, data, setOptions, setLoading} = this.props;
+    const {autoComplete, env, data, setOptions, setLoading, source} =
+      this.props;
 
-    if (!isEffectiveApi(autoComplete, data)) {
+    // 同时配置source和autoComplete时，首次渲染需要加载source数据
+    if (
+      !isEffectiveApi(autoComplete, data) ||
+      (!input && isEffectiveApi(source) && !this.sourceLoaded)
+    ) {
+      this.sourceLoaded = true;
       return;
     } else if (!env || !env.fetcher) {
       throw new Error('fetcher is required');