diff --git a/bi/polyfill.js b/bi/polyfill.js
new file mode 100644
index 0000000000..854ed288f6
--- /dev/null
+++ b/bi/polyfill.js
@@ -0,0 +1,93 @@
+if(![].indexOf){
+    /**
+     * 检查指定的值是否在数组中
+     * @param {Object} o 要检查的值
+     * @return {Number}  o在数组中的索引（如果不在数组中则返回-1）
+     */
+    [].indexOf = function (o) {
+        for (var i = 0, len = this.length; i < len; i++) {
+            if (_.isEqual(o, this[i])) {
+                return i;
+            }
+        }
+        return -1;
+    }
+}
+if(![].lastIndexOf){
+    /**
+     * 检查指定的值是否在数组中
+     * ie67不支持数组的这个方法
+     * @param {Object} o 要检查的值
+     * @return {Number}  o在数组中的索引（如果不在数组中则返回-1）
+     */
+    [].lastIndexOf = function (o) {
+        for (var len = this.length, i = len - 1; i >= 0; i--) {
+            if (_.isEqual(o, this[i])) {
+                return i;
+            }
+        }
+        return -1;
+    }
+}/**
+ * 特殊情况
+ * Created by wang on 15/6/23.
+ */
+//解决console未定义问题 guy
+window.console = window.console || (function () {
+        var c = {};
+        c.log = c.warn = c.debug = c.info = c.error = c.time = c.dir = c.profile
+            = c.clear = c.exception = c.trace = c.assert = function () {
+        };
+        return c;
+    })();
+/*
+ * 前端缓存
+ */
+window.localStorage || (window.localStorage = {
+    items: {},
+    setItem: function (k, v) {
+        BI.Cache.addCookie(k, v);
+    },
+    getItem: function (k) {
+        return BI.Cache.getCookie(k);
+    },
+    removeItem: function (k) {
+        BI.Cache.deleteCookie(k);
+    },
+    key: function () {
+
+    },
+    clear: function () {
+        this.items = {};
+    }
+});//修复ie9下sort方法的bug
+!function (window) {
+    var ua = window.navigator.userAgent.toLowerCase(),
+        reg = /msie|applewebkit.+safari/;
+    if (reg.test(ua)) {
+        var _sort = Array.prototype.sort;
+        Array.prototype.sort = function (fn) {
+            if (!!fn && typeof fn === 'function') {
+                if (this.length < 2) {
+                    return this;
+                }
+                var i = 0, j = i + 1, l = this.length, tmp, r = false, t = 0;
+                for (; i < l; i++) {
+                    for (j = i + 1; j < l; j++) {
+                        t = fn.call(this, this[i], this[j]);
+                        r = (typeof t === 'number' ? t :
+                                !!t ? 1 : 0) > 0;
+                        if (r === true) {
+                            tmp = this[i];
+                            this[i] = this[j];
+                            this[j] = tmp;
+                        }
+                    }
+                }
+                return this;
+            } else {
+                return _sort.call(this);
+            }
+        };
+    }
+}(window);
\ No newline at end of file
diff --git a/demo/js/config/widget.js b/demo/js/config/widget.js
index 423892244a..003cadc123 100644
--- a/demo/js/config/widget.js
+++ b/demo/js/config/widget.js
@@ -21,6 +21,14 @@ Demo.WIDGET_CONFIG = [{
     pId: 401,
     text: "bi.page_table",
     value: "demo.page_table"
+}, {
+    id: 402,
+    pId: 4,
+    text: "tree"
+}, {
+    pId: 402,
+    text: "bi.multilayer_select_tree_combo",
+    value: "demo.multilayer_select_tree_combo"
 }, {
     pId: 4,
     text: "bi.multi_select_combo",
diff --git a/demo/js/widget/tree/demo.multilayer_select_tree_combo.js b/demo/js/widget/tree/demo.multilayer_select_tree_combo.js
new file mode 100644
index 0000000000..580587289f
--- /dev/null
+++ b/demo/js/widget/tree/demo.multilayer_select_tree_combo.js
@@ -0,0 +1,69 @@
+/**
+ * Created by User on 2017/3/22.
+ */
+Demo.MultiSelectCombo = BI.inherit(BI.Widget, {
+    props: {},
+
+    render: function (vessel) {
+        var TREEWITHCHILDREN = [{
+            id: -1, value: "根目录", text: "根目录", children: [
+                {
+                    id: 1, value: "第一级目录1", text: "第一级目录1", children: [
+                    {id: 11, value: "第二级文件1", text: "第二级文件1"},
+                    {
+                        id: 12, value: "第二级目录2", text: "第二级目录2", children: [
+                        {
+                            id: 121, value: "第三级目录1", text: "第三级目录1", children: [
+                            {
+                                id: 1211, value: "第四级目录1", text: "第四级目录1", children: [
+                                {id: 12111, value: "第五级文件1", text: "第五级文件1"}
+                            ]
+                            }
+                        ]
+                        },
+                        {id: 122, value: "第三级文件1", text: "第三级文件1"}
+                    ]
+                    }
+                ]
+                },
+                {
+                    id: 2, value: "第一级目录2", text: "第一级目录2", children: [
+                    {
+                        id: 21, value: "第二级目录3", text: "第二级目录3", children: [
+                        {
+                            id: 211, value: "第三级目录2", text: "第三级目录2", children: [
+                            {id: 2111, value: "第四级文件1", text: "第四级文件1"}
+                        ]
+                        },
+                        {id: 212, value: "第三级文件2", text: "第三级文件2"}
+                    ]
+                    },
+                    {id: 22, value: "第二级文件2", text: "第二级文件2"}
+                ]
+                }
+            ]
+        }];
+        var items = BI.deepClone(TREEWITHCHILDREN);
+        var combo = BI.createWidget({
+            type: "bi.multilayer_select_tree_combo",
+            itemsCreator: function (op, callback) {
+                debugger;
+            }
+        });
+
+        combo.populate();
+        return {
+            type: "bi.vertical",
+            items: [combo, {
+                type: "bi.button",
+                width: 100,
+                text: "getValue",
+                handler: function () {
+                    BI.Msg.alert("", JSON.stringify(combo.getValue()));
+                }
+            }],
+            vgap: 100
+        }
+    }
+});
+BI.shortcut("demo.multilayer_select_tree_combo", Demo.MultiSelectCombo);
\ No newline at end of file
diff --git a/docs/demo.js b/docs/demo.js
index a5ba8e5426..3c93eef27b 100644
--- a/docs/demo.js
+++ b/docs/demo.js
@@ -3112,6 +3112,14 @@ Demo.COMPONENT_CONFIG = [{
     pId: 401,
     text: "bi.page_table",
     value: "demo.page_table"
+}, {
+    id: 402,
+    pId: 4,
+    text: "tree"
+}, {
+    pId: 402,
+    text: "bi.multilayer_select_tree_combo",
+    value: "demo.multilayer_select_tree_combo"
 }, {
     pId: 4,
     text: "bi.multi_select_combo",
@@ -6725,7 +6733,75 @@ BI.shortcut("demo.responsive_table", Demo.Func);Demo.Func = BI.inherit(BI.Widget
         })
     }
 });
-BI.shortcut("demo.sequence_table", Demo.Func);Demo.CONFIG = Demo.CORE_CONFIG.concat(Demo.BASE_CONFIG).concat(Demo.CASE_CONFIG).concat(Demo.WIDGET_CONFIG).concat(Demo.COMPONENT_CONFIG).concat(Demo.CHART_CONFIG);
+BI.shortcut("demo.sequence_table", Demo.Func);/**
+ * Created by User on 2017/3/22.
+ */
+Demo.MultiSelectCombo = BI.inherit(BI.Widget, {
+    props: {},
+
+    render: function (vessel) {
+        var TREEWITHCHILDREN = [{
+            id: -1, value: "根目录", text: "根目录", children: [
+                {
+                    id: 1, value: "第一级目录1", text: "第一级目录1", children: [
+                    {id: 11, value: "第二级文件1", text: "第二级文件1"},
+                    {
+                        id: 12, value: "第二级目录2", text: "第二级目录2", children: [
+                        {
+                            id: 121, value: "第三级目录1", text: "第三级目录1", children: [
+                            {
+                                id: 1211, value: "第四级目录1", text: "第四级目录1", children: [
+                                {id: 12111, value: "第五级文件1", text: "第五级文件1"}
+                            ]
+                            }
+                        ]
+                        },
+                        {id: 122, value: "第三级文件1", text: "第三级文件1"}
+                    ]
+                    }
+                ]
+                },
+                {
+                    id: 2, value: "第一级目录2", text: "第一级目录2", children: [
+                    {
+                        id: 21, value: "第二级目录3", text: "第二级目录3", children: [
+                        {
+                            id: 211, value: "第三级目录2", text: "第三级目录2", children: [
+                            {id: 2111, value: "第四级文件1", text: "第四级文件1"}
+                        ]
+                        },
+                        {id: 212, value: "第三级文件2", text: "第三级文件2"}
+                    ]
+                    },
+                    {id: 22, value: "第二级文件2", text: "第二级文件2"}
+                ]
+                }
+            ]
+        }];
+        var items = BI.deepClone(TREEWITHCHILDREN);
+        var combo = BI.createWidget({
+            type: "bi.multilayer_select_tree_combo",
+            itemsCreator: function (op, callback) {
+                debugger;
+            }
+        });
+
+        combo.populate();
+        return {
+            type: "bi.vertical",
+            items: [combo, {
+                type: "bi.button",
+                width: 100,
+                text: "getValue",
+                handler: function () {
+                    BI.Msg.alert("", JSON.stringify(combo.getValue()));
+                }
+            }],
+            vgap: 100
+        }
+    }
+});
+BI.shortcut("demo.multilayer_select_tree_combo", Demo.MultiSelectCombo);Demo.CONFIG = Demo.CORE_CONFIG.concat(Demo.BASE_CONFIG).concat(Demo.CASE_CONFIG).concat(Demo.WIDGET_CONFIG).concat(Demo.COMPONENT_CONFIG).concat(Demo.CHART_CONFIG);
 
 
 Demo.CONSTANTS = {
diff --git a/docs/polyfill.js b/docs/polyfill.js
new file mode 100644
index 0000000000..854ed288f6
--- /dev/null
+++ b/docs/polyfill.js
@@ -0,0 +1,93 @@
+if(![].indexOf){
+    /**
+     * 检查指定的值是否在数组中
+     * @param {Object} o 要检查的值
+     * @return {Number}  o在数组中的索引（如果不在数组中则返回-1）
+     */
+    [].indexOf = function (o) {
+        for (var i = 0, len = this.length; i < len; i++) {
+            if (_.isEqual(o, this[i])) {
+                return i;
+            }
+        }
+        return -1;
+    }
+}
+if(![].lastIndexOf){
+    /**
+     * 检查指定的值是否在数组中
+     * ie67不支持数组的这个方法
+     * @param {Object} o 要检查的值
+     * @return {Number}  o在数组中的索引（如果不在数组中则返回-1）
+     */
+    [].lastIndexOf = function (o) {
+        for (var len = this.length, i = len - 1; i >= 0; i--) {
+            if (_.isEqual(o, this[i])) {
+                return i;
+            }
+        }
+        return -1;
+    }
+}/**
+ * 特殊情况
+ * Created by wang on 15/6/23.
+ */
+//解决console未定义问题 guy
+window.console = window.console || (function () {
+        var c = {};
+        c.log = c.warn = c.debug = c.info = c.error = c.time = c.dir = c.profile
+            = c.clear = c.exception = c.trace = c.assert = function () {
+        };
+        return c;
+    })();
+/*
+ * 前端缓存
+ */
+window.localStorage || (window.localStorage = {
+    items: {},
+    setItem: function (k, v) {
+        BI.Cache.addCookie(k, v);
+    },
+    getItem: function (k) {
+        return BI.Cache.getCookie(k);
+    },
+    removeItem: function (k) {
+        BI.Cache.deleteCookie(k);
+    },
+    key: function () {
+
+    },
+    clear: function () {
+        this.items = {};
+    }
+});//修复ie9下sort方法的bug
+!function (window) {
+    var ua = window.navigator.userAgent.toLowerCase(),
+        reg = /msie|applewebkit.+safari/;
+    if (reg.test(ua)) {
+        var _sort = Array.prototype.sort;
+        Array.prototype.sort = function (fn) {
+            if (!!fn && typeof fn === 'function') {
+                if (this.length < 2) {
+                    return this;
+                }
+                var i = 0, j = i + 1, l = this.length, tmp, r = false, t = 0;
+                for (; i < l; i++) {
+                    for (j = i + 1; j < l; j++) {
+                        t = fn.call(this, this[i], this[j]);
+                        r = (typeof t === 'number' ? t :
+                                !!t ? 1 : 0) > 0;
+                        if (r === true) {
+                            tmp = this[i];
+                            this[i] = this[j];
+                            this[j] = tmp;
+                        }
+                    }
+                }
+                return this;
+            } else {
+                return _sort.call(this);
+            }
+        };
+    }
+}(window);
\ No newline at end of file