diff --git a/src/components/common/TableBody.vue b/src/components/common/TableBody.vue
index b0b5351..74efa79 100644
--- a/src/components/common/TableBody.vue
+++ b/src/components/common/TableBody.vue
@@ -49,7 +49,7 @@
         )"
         :key="i"
       >
-        <component :is="c" :data="d" :__index="i" />
+        <component :is="c" :data="d" />
       </template>
     </div>
   </div>
diff --git a/src/models/param/slotsBox.ts b/src/models/param/slotsBox.ts
index 8982bd3..089ae07 100644
--- a/src/models/param/slotsBox.ts
+++ b/src/models/param/slotsBox.ts
@@ -57,7 +57,10 @@ export default class SlotsBox {
    * 将 columns 的叶子结点平铺
    */
   private setLeafCols() {
-    this.cols = this.tableHeaders.leafs.map(v => v.node);
+    this.cols = this.tableHeaders.leafs.map((v, i) => {
+      v.node.props = Object.assign({}, v.node.props, { __index: i });
+      return v.node;
+    });
   }
 
   setSlots(slots: Slots) {