diff --git a/package/component/src/component/checkbox/index.vue b/package/component/src/component/checkbox/index.vue
index b99bf92c..8f896711 100644
--- a/package/component/src/component/checkbox/index.vue
+++ b/package/component/src/component/checkbox/index.vue
@@ -13,7 +13,7 @@ export interface LayCheckboxProps {
   name?: string;
   skin?: string;
   label: string | object;
-  isIndeterminate: boolean;
+  isIndeterminate?: boolean;
   modelValue?: boolean | Array<string | object>;
   disabled?: boolean;
 }
diff --git a/package/document-component/src/document/zh-CN/components/checkbox.md b/package/document-component/src/document/zh-CN/components/checkbox.md
index af0c5403..79b3c66a 100644
--- a/package/document-component/src/document/zh-CN/components/checkbox.md
+++ b/package/document-component/src/document/zh-CN/components/checkbox.md
@@ -188,7 +188,7 @@ export default {
 ::: demo 在实现全选效果时，你可能会用到 indeterminate 属性。
 
 <template>
-    <lay-checkbox name="like" skin="primary" label="1" isIndeterminate="true" v-model="checked8">半选</lay-checkbox>
+    <lay-checkbox name="like" skin="primary" label="1" :isIndeterminate="true" v-model="checked8">半选</lay-checkbox>
 </template>
 
 <script>