diff --git a/src/Table/TableBody.js b/src/Table/TableBody.js
index 84e89d7..108bb90 100644
--- a/src/Table/TableBody.js
+++ b/src/Table/TableBody.js
@@ -98,15 +98,6 @@ export default {
     },
   },
   render() {
-    // key
-    function getKey(row, rowIndex) {
-      const rowKey = this.table.rowKey;
-      if (rowKey) {
-        return rowKey.call(null, row, rowIndex);
-      }
-      return rowIndex;
-    }
-
     // style
     function getStyle(type, row, rowIndex, column, columnIndex) {
       const certainType = this.validateType(type, ['cell', 'row'], 'getStyle');
@@ -252,7 +243,7 @@ export default {
               [
                 <tr
                   v-show={ !row._isHide }
-                  key={ this.table.rowKey ? getKey(row, rowIndex) : rowIndex }
+                  key={ this.table.rowKey ? this.table.rowKey.call(null, row, rowIndex) : rowIndex }
                   style={ getStyle.call(this, 'row', row, rowIndex) }
                   class={ getClassName.call(this, 'row', row, rowIndex) }
                   on-click={ $event => this.handleEvent($event, 'row', { row, rowIndex }) }