diff --git a/packages/design/src/types.ts b/packages/design/src/types.ts
index 726db962..92d1b4a3 100644
--- a/packages/design/src/types.ts
+++ b/packages/design/src/types.ts
@@ -46,6 +46,8 @@ export interface CascaderProps {
   filterable?: boolean;
   options?: CascaderOption[];
   size?: FieldSize;
+  /** 弹出内容的自定义类名 */
+  popperClass?: string;
   props: {
     expandTrigger?: 'click' | 'hover';
     multiple?: boolean;
diff --git a/packages/form/src/fields/Cascader.vue b/packages/form/src/fields/Cascader.vue
index 9633400e..115b6d23 100644
--- a/packages/form/src/fields/Cascader.vue
+++ b/packages/form/src/fields/Cascader.vue
@@ -9,6 +9,7 @@
     :placeholder="config.placeholder"
     :disabled="disabled"
     :options="options"
+    :popper-class="config.popperClass"
     :props="{
       multiple: config.multiple ?? false,
       emitPath: config.emitPath ?? true,
diff --git a/packages/form/src/schema.ts b/packages/form/src/schema.ts
index 7b7c63da..16c86ca8 100644
--- a/packages/form/src/schema.ts
+++ b/packages/form/src/schema.ts
@@ -536,6 +536,8 @@ export interface CascaderConfig extends FormItem, Input {
   multiple?: boolean;
   /** 是否严格的遵守父子节点不互相关联，默认 false */
   checkStrictly?: boolean;
+  /** 弹出内容的自定义类名 */
+  popperClass?: string;
   options?:
     | ((
         mForm: FormState | undefined,