diff --git a/examples/routers/table.vue b/examples/routers/table.vue
index 48fd008b..fba4ba5b 100644
--- a/examples/routers/table.vue
+++ b/examples/routers/table.vue
@@ -1,6 +1,10 @@
 <template>
     <div style="margin: 100px;">
-        <Table disabled-hover border ref="selection" :columns="columns4" :data="data1" row-key></Table>
+        <Table border ref="selection" :columns="columns4" :data="data1" row-key="id">
+            <template slot-scope="{ row }" slot="age">
+                <strong>{{row.age}}</strong>
+            </template>
+        </Table>
         <Button @click="handleSelectAll(true)">Set all selected</Button>
         <Button @click="handleSelectAll(false)">Cancel all selected</Button>
     </div>
@@ -22,7 +26,8 @@
                     },
                     {
                         title: 'Age',
-                        key: 'age'
+                        // key: 'age',
+                        slot: 'age'
                     },
                     {
                         title: 'Date',
@@ -35,55 +40,66 @@
                 ],
                 data1: [
                     {
+                        id: '100',
                         name: 'John Brown',
                         age: 18,
                         address: 'New York No. 1 Lake Park',
                         date: '2016-10-03'
                     },
                     {
+                        id: '101',
                         name: 'Jim Green',
                         age: 24,
                         address: 'London No. 1 Lake Park',
                         date: '2016-10-01',
-                        _showChildren: false,
+                        _showChildren: true,
                         children: [
                             {
+                                id: '10100',
                                 name: '张三',
                                 age: 18,
                                 address: '发动机莲富大厦放假了开始的',
                                 date: '2016-10-01'
                             },
                             {
+                                id: '10101',
                                 name: '李四',
                                 age: 19,
                                 address: '风刀霜剑分离的思路开发',
                                 date: '2016-10-02'
                             },
                             {
+                                id: '10102',
                                 name: '王五',
                                 age: 20,
                                 address: '分离的付款就说个就是范德萨发生',
                                 date: '2016-10-03',
+                                _showChildren: true,
                                 children: [
                                     {
+                                        id: '10102100',
                                         name: '赵六',
                                         age: 21,
                                         address: '梵蒂冈人太热疼我',
                                         date: '2016-10-05'
                                     },
                                     {
+                                        id: '10102101',
                                         name: '丁八',
                                         age: 22,
                                         address: '法第三方的范德萨范德萨发送到',
                                         date: '2016-10-06',
+                                        _showChildren: true,
                                         children: [
                                             {
+                                                id: '10102101100',
                                                 name: '第九',
                                                 age: 23,
                                                 address: '9梵蒂冈人太热疼我',
                                                 date: '2016-10-07'
                                             },
                                             {
+                                                id: '10102101101',
                                                 name: '第十',
                                                 age: 24,
                                                 address: '10法第三方的范德萨范德萨发送到',
@@ -96,12 +112,14 @@
                         ]
                     },
                     {
+                        id: '102',
                         name: 'Joe Black',
                         age: 30,
                         address: 'Sydney No. 1 Lake Park',
                         date: '2016-10-02'
                     },
                     {
+                        id: '103',
                         name: 'Jon Snow',
                         age: 26,
                         address: 'Ottawa No. 2 Lake Park',
diff --git a/src/components/table/cell.vue b/src/components/table/cell.vue
index 15d3664a..e61dbffc 100644
--- a/src/components/table/cell.vue
+++ b/src/components/table/cell.vue
@@ -6,7 +6,7 @@
         </template>
         <div class="ivu-table-cell-tree-level" v-if="showLevel" :style="treeLevelStyle"></div>
         <div class="ivu-table-cell-tree" v-if="showChildren" @click="handleToggleTree">
-            <Icon type="ios-add" v-if="!row._isShowChildren" />
+            <Icon type="ios-add" v-if="!childrenExpand" />
             <Icon type="ios-remove" v-else />
         </div>
         <div class="ivu-table-cell-tree ivu-table-cell-tree-empty" v-else-if="showTreeNode"></div>
@@ -125,6 +125,10 @@
                 return {
                     'padding-left': this.treeLevel * this.tableRoot.indentSize + 'px'
                 };
+            },
+            childrenExpand () {
+                const data = this.tableRoot.getDataByRowKey(this.row._rowKey);
+                return data._isShowChildren;
             }
         },
         methods: {
diff --git a/src/components/table/table-body.vue b/src/components/table/table-body.vue
index 7e271b39..e9b9b4e6 100644
--- a/src/components/table/table-body.vue
+++ b/src/components/table/table-body.vue
@@ -142,14 +142,15 @@
             },
             isTrShow (rowKey) {
                 let status = true;
-                this.data.forEach(row => {
+                for (let i in this.objData) {
+                    const row = this.objData[i];
                     const showChildren = row._isShowChildren;
                     if (row._rowKey === rowKey) {
                         status = status && showChildren;
                     } else if (row.children && row.children.length) {
                         status = this.getTrStatus(rowKey, row, status && showChildren);
                     }
-                });
+                }
                 return status;
             },
             getTrStatus (rowKey, data, parentStatus) {
diff --git a/src/components/table/table.vue b/src/components/table/table.vue
index d17ba496..1b286ab4 100644
--- a/src/components/table/table.vue
+++ b/src/components/table/table.vue
@@ -698,7 +698,7 @@
                 const data = this.getDataByRowKey(rowKey);
                 data._isShowChildren = !data._isShowChildren;
             },
-            getDataByRowKey (rowKey, objData = this.rebuildData) {
+            getDataByRowKey (rowKey, objData = this.objData) {
                 let data = null;
                 for (let i in objData) {
                     const thisData = objData[i];
@@ -962,11 +962,6 @@
                     row._index = index;
                     row._rowKey = (typeof this.rowKey) === 'string' ? row[this.rowKey] : rowKey++;
                     if (row.children && row.children.length) {
-                        if (row._showChildren) {
-                            row._isShowChildren = row._showChildren;
-                        } else {
-                            row._isShowChildren = false;
-                        }
                         row.children = this.makeChildrenData(row);
                     }
                 });
@@ -977,12 +972,7 @@
                     return data.children.map((row, index) => {
                         const newRow = deepCopy(row);
                         newRow._index = index;
-                        newRow._rowKey = (typeof this.rowKey) === 'string' ? row[this.rowKey] : rowKey++;
-                        if (newRow._showChildren) {
-                            newRow._isShowChildren = newRow._showChildren;
-                        } else {
-                            newRow._isShowChildren = false;
-                        }
+                        newRow._rowKey = (typeof this.rowKey) === 'string' ? newRow[this.rowKey] : rowKey++;
                         if (newRow.children && newRow.children.length) {
                             newRow.children = this.makeChildrenData(newRow);
                         }
@@ -1022,6 +1012,9 @@
             makeObjBaseData (row) {
                 const newRow = deepCopy(row);
                 newRow._isHover = false;
+                if ((typeof this.rowKey) === 'string') {
+                    newRow._rowKey = newRow[this.rowKey];
+                }
                 if (newRow._disabled) {
                     newRow._isDisabled = newRow._disabled;
                 } else {
@@ -1049,12 +1042,11 @@
                 this.data.forEach((row, index) => {
                     const newRow = this.makeObjBaseData(row);
                     if (newRow.children && newRow.children.length) {
-                        // todo 这里不在 objData 设置 _isShowChildren 了，改在 rebuildData，否则拿不到 rowKey
-                        // if (newRow._showChildren) {
-                        //     newRow._isShowChildren = newRow._showChildren;
-                        // } else {
-                        //     newRow._isShowChildren = false;
-                        // }
+                        if (newRow._showChildren) {
+                            newRow._isShowChildren = newRow._showChildren;
+                        } else {
+                            newRow._isShowChildren = false;
+                        }
                         newRow.children = this.makeChildrenObjData(newRow);
                     }
                     data[index] = newRow;
@@ -1065,6 +1057,11 @@
                 if (data.children && data.children.length) {
                     return data.children.map(row => {
                         const newRow = this.makeObjBaseData(row);
+                        if (newRow._showChildren) {
+                            newRow._isShowChildren = newRow._showChildren;
+                        } else {
+                            newRow._isShowChildren = false;
+                        }
                         if (newRow.children && newRow.children.length) {
                             newRow.children = this.makeChildrenObjData(newRow);
                         }