diff --git a/common/BehaviorTreeModel.ts b/common/BehaviorTreeModel.ts
new file mode 100644
index 0000000..9ca08c0
--- /dev/null
+++ b/common/BehaviorTreeModel.ts
@@ -0,0 +1,19 @@
+export interface BehaviorNodeTypeModel {
+  name: string;
+  type?: string;
+  desc?: string;
+  args?: string[][3];
+  input?: string[];
+  output?: string;
+  doc?: string;
+}
+
+export interface BehaviorNodeModel {
+  id: number;
+  name: string;
+  desc?: string;
+}
+
+export interface BehaviorTreeModel {
+  name: string;
+}
\ No newline at end of file
diff --git a/index.html b/index.html
index cffbde8..ebb1968 100644
--- a/index.html
+++ b/index.html
@@ -3,7 +3,7 @@
 
 <head>
   <meta charset="UTF-8" />
-  <title>demo</title>
+  <title>行为树编辑器</title>
 </head>
 
 <body>
diff --git a/main-process/AppMenu.ts b/main-process/AppMenu.ts
index ae7ee79..83e78b2 100644
--- a/main-process/AppMenu.ts
+++ b/main-process/AppMenu.ts
@@ -167,16 +167,16 @@ export default class AppMenu {
   }
 
   private createNodeMenu() {
-    const typeItems: MenuItemConstructorOptions[] = [];
+    const classifyItems: MenuItemConstructorOptions[] = [];
     const map: { [key: string]: MenuItemConstructorOptions } = {}
-    for (let t of this.settings.nodeTypes) {
+    for (let t of this.settings.nodeClassify) {
       let item: MenuItemConstructorOptions = {
-        id: t.type,
-        label: `${t.type}(${t.desc})`,
+        id: t.classify,
+        label: `${t.classify}(${t.desc})`,
         submenu: [],
       };
-      typeItems.push(item);
-      map[t.type] = item;
+      classifyItems.push(item);
+      map[t.classify] = item;
     }
     const other: MenuItemConstructorOptions = {
       id: 'other',
@@ -205,12 +205,12 @@ export default class AppMenu {
     }
 
     if(hasOther) {
-      typeItems.push(other);
+      classifyItems.push(other);
     }
     
     return new MenuItem({
       label: "新建节点",
-      submenu: typeItems
+      submenu: classifyItems
     });
   }
 }
\ No newline at end of file
diff --git a/main-process/Settings.ts b/main-process/Settings.ts
index b370f52..74edbc0 100644
--- a/main-process/Settings.ts
+++ b/main-process/Settings.ts
@@ -1,7 +1,8 @@
 import * as fs from 'fs';
+import { BehaviorNodeTypeModel } from '../common/BehaviorTreeModel';
 
-export interface BehaviorNodeType {
-  type: string;
+export interface BehaviorNodeClassify {
+  classify: string;
   desc?: string;
 }
 
@@ -9,16 +10,16 @@ export interface SettingsModel {
   recentWorkspaces?: string[];
   recentFiles?: string[];
   nodeConfigPath?: string; // 节点配置路径
-  nodeTypes?: BehaviorNodeType[];
+  nodeClassify?: BehaviorNodeClassify[];
 }
 
 const settingPath = 'settings.json';
 const sampleNodeConfig = 'sample-node-config.json';
-const sampleNodeTypes: BehaviorNodeType[] = [
-  { type: "Composite", desc: "复合节点" },
-  { type: "Decorator", desc: "修饰节点" },
-  { type: "Condition", desc: "条件节点" },
-  { type: "Action", desc: "行为节点" },
+const sampleNodeClassify: BehaviorNodeClassify[] = [
+  { classify: "Composite", desc: "复合节点" },
+  { classify: "Decorator", desc: "修饰节点" },
+  { classify: "Condition", desc: "条件节点" },
+  { classify: "Action", desc: "行为节点" },
 ]
 
 export default class Settings {
@@ -32,7 +33,7 @@ export default class Settings {
         recentWorkspaces: [],
         recentFiles: [],
         nodeConfigPath: sampleNodeConfig,
-        nodeTypes: sampleNodeTypes,
+        nodeClassify: sampleNodeClassify,
       };
       this.save();
     }
@@ -49,10 +50,11 @@ export default class Settings {
   }
   get nodeConfig() {
     const str = fs.readFileSync(this.nodeConfigPath, 'utf8');
-    return JSON.parse(str);
+    const types: BehaviorNodeTypeModel[] = JSON.parse(str);
+    return types;
   }
-  get nodeTypes() {
-    return this.settings.nodeTypes;
+  get nodeClassify() {
+    return this.settings.nodeClassify;
   }
 
   set(config: SettingsModel) {
diff --git a/main-process/main.tsx b/main-process/main.tsx
index 7c24c6d..56a285c 100644
--- a/main-process/main.tsx
+++ b/main-process/main.tsx
@@ -1,13 +1,14 @@
 import { app, BrowserWindow, Menu, MenuItem, dialog, nativeTheme } from 'electron';
 import AppMenu from './AppMenu'
 import Settings from './Settings';
+import MainEventType from '../common/MainEventType';
 
 export class MainProcess {
   mainWindow: BrowserWindow;
   appMenu: AppMenu;
   settings: Settings;
   constructor() {
-    nativeTheme.themeSource = 'dark';    
+    nativeTheme.themeSource = 'dark';
     app.on('ready', () => {
       this.createWindow();
     })
@@ -23,7 +24,7 @@ export class MainProcess {
     });
   }
 
-  createWindow (){
+  createWindow() {
     this.settings = new Settings();
     this.mainWindow = new BrowserWindow({
       width: 1280,
@@ -41,6 +42,11 @@ export class MainProcess {
     });
     this.appMenu = new AppMenu(this);
     this.rebuildMenu();
+
+    const lastWorkspace = this.settings.recentWorkspaces[0];
+    if(lastWorkspace) {
+      this.mainWindow.webContents.send(MainEventType.OPEN_WORKSPACE, lastWorkspace);
+    }
   }
 
   rebuildMenu() {
diff --git a/render-process/Editor/Editor.css b/render-process/Editor/Editor.css
new file mode 100644
index 0000000..523d59c
--- /dev/null
+++ b/render-process/Editor/Editor.css
@@ -0,0 +1,20 @@
+.body {
+  width   : 100%;
+  height  : 100%;
+  position: fixed;
+}
+
+.sider {
+  height  : 100%;
+  overflow: hidden;
+}
+
+.sider:hover {
+  overflow-y   : auto;
+}
+
+.content {
+  width  : 100%;
+  height : 100%;
+  display: flex;
+}
\ No newline at end of file
diff --git a/render-process/Editor/Properties.tsx b/render-process/Editor/Properties.tsx
new file mode 100644
index 0000000..7460d12
--- /dev/null
+++ b/render-process/Editor/Properties.tsx
@@ -0,0 +1,44 @@
+import React, { Component } from "react";
+import { Menu, Input } from "antd";
+import * as fs from 'fs';
+import { BehaviorTreeModel } from "../../common/BehaviorTreeModel";
+
+const { Search } = Input;
+
+export interface PropertiesProps {
+  workspace: string;
+  onOpenTree: (path: string) => void;
+  trees: BehaviorTreeModel[];
+}
+
+interface PropertiesState {
+
+}
+
+export default class Properties extends Component<PropertiesProps> {
+  state: PropertiesState = {
+
+  };
+
+  componentDidMount() {
+
+  }
+
+  render() {
+    return (
+      <div>
+        <Search
+          placeholder="Search"
+          onChange={() => {
+
+          }}
+        />
+         <Menu
+          mode="inline"
+        >
+          <Menu.Item>test</Menu.Item>
+        </Menu>
+      </div>
+    )
+  }
+}
\ No newline at end of file
diff --git a/render-process/Editor/index.tsx b/render-process/Editor/index.tsx
index 0333761..18be383 100644
--- a/render-process/Editor/index.tsx
+++ b/render-process/Editor/index.tsx
@@ -1,18 +1,26 @@
 import React, { Component } from "react";
-import { DatePicker } from 'antd';
+import { Layout } from 'antd';
 import { ipcRenderer } from 'electron';
+import * as path from 'path';
 import * as fs from 'fs';
 import MainEventType from "../../common/MainEventType";
+import Properties from "./Properties";
+import './Editor.css';
+import { BehaviorTreeModel } from "../../common/BehaviorTreeModel";
+
+const { Header, Sider, Content, Footer } = Layout;
 
 interface EditorState {
   workspace: string;
   filepaths: string[];
+  trees: BehaviorTreeModel[];
 }
 
 export default class Editor extends Component {
   state: EditorState = {
     workspace: '',
     filepaths: [],
+    trees: [],
   }
 
   componentDidMount() {
@@ -20,17 +28,51 @@ export default class Editor extends Component {
       console.log("on open file", path);
       const filepaths = this.state.filepaths;
       filepaths.push(path);
-      this.setState({filepaths});
+      this.setState({ filepaths });
     });
 
     ipcRenderer.on(MainEventType.OPEN_WORKSPACE, (event: any, workspace: any) => {
       console.log("on open workspace", workspace);
-      this.setState({workspace});
+      this.setState({ workspace });
+      this.loadAllTrees();
     });
+
+    this.loadAllTrees();
+  }
+
+  loadAllTrees() {
+    const workspace = this.state.workspace
+    if(workspace == '' || !fs.existsSync(workspace)) {
+      console.log("workspace not exist", workspace);
+      return;
+    }
+
+    const files = fs.readdirSync(workspace);
+    const list = []
+    files.forEach((filename) => {
+      console.log("load path", filename);
+      const stat = fs.statSync(path.join(workspace, filename))
+      if (stat.isFile()) {
+        let tree = this.loadTree(filename.slice(0, -5));
+        list.push(tree);
+        console.log("loaded", filename);
+      }
+    })
+  }
+
+  loadTree(name: string) {
+    const filename = this.state.workspace + '/' + name + '.json';
+    if (!fs.existsSync(filename)) {
+      return;
+    }
+    const str = fs.readFileSync(filename, 'utf8');
+    let tree: BehaviorTreeModel = JSON.parse(str);
+    tree.name = name;
+    return tree;
   }
 
   renderJson() {
-    if(this.state.filepaths.length>0) {
+    if (this.state.filepaths.length > 0) {
       const path = this.state.filepaths[0];
       const str = fs.readFileSync(path, 'utf8');
       return (<div>{str}</div>)
@@ -38,16 +80,28 @@ export default class Editor extends Component {
   }
 
   render() {
+    const { trees } = this.state;
     return (
-      <div>
-        <div>
-          当前目录:{this.state.workspace}
-        </div>
-        <div>
-          当前文件:{this.state.filepaths.join("\n")}
-        </div>
-        {this.renderJson()}
-      </div>
+      <Layout className="body">
+        <Sider className="sider" width={250}>
+          <Properties
+            workspace={this.state.workspace}
+            onOpenTree={(path) => {
+              console.log("open tree", path);
+            }}
+            trees={trees}
+          />
+        </Sider>
+        <Content className="content">
+          <div>
+            当前目录:{this.state.workspace}
+          </div>
+          <div>
+            当前文件:{this.state.filepaths.join("\n")}
+          </div>
+          {this.renderJson()}
+        </Content>
+      </Layout>
     )
   }
 };
\ No newline at end of file