diff --git a/examples/docs/newsrc/pc.vue b/examples/docs/newsrc/pc.vue
index 3f50abda05..62828915f8 100644
--- a/examples/docs/newsrc/pc.vue
+++ b/examples/docs/newsrc/pc.vue
@@ -97,7 +97,7 @@
       </div>
     </tiny-floatbar>
     <!-- 切换主题 -->
-    <tiny-dropdown class="!fixed bottom20 right140" @item-click="changeTheme">
+    <tiny-dropdown class="!fixed bottom20 right140" :show-icon="false" @item-click="changeTheme">
       <span title="切换主题">
         <SvgTheme></SvgTheme>
       </span>
diff --git a/packages/design/aurora/src/dropdown/index.ts b/packages/design/aurora/src/dropdown/index.ts
index d2773f8fb3..fb2837afd1 100644
--- a/packages/design/aurora/src/dropdown/index.ts
+++ b/packages/design/aurora/src/dropdown/index.ts
@@ -2,6 +2,6 @@ import { iconChevronDown } from '@opentiny/vue-icon'
 
 export default {
   icons: {
-    downWard: iconChevronDown()
+    dropdownIcon: iconChevronDown()
   }
 }
diff --git a/packages/design/smb/src/dropdown/index.ts b/packages/design/smb/src/dropdown/index.ts
index 68f375d48f..80c4d6ce85 100644
--- a/packages/design/smb/src/dropdown/index.ts
+++ b/packages/design/smb/src/dropdown/index.ts
@@ -2,6 +2,6 @@ import { iconDownWard } from '@opentiny/vue-icon'
 
 export default {
   icons: {
-    downWard: iconDownWard()
+    dropdownIcon: iconDownWard()
   }
 }
diff --git a/packages/vue/src/dropdown/src/pc.vue b/packages/vue/src/dropdown/src/pc.vue
index 16a701b589..1be35e3b60 100644
--- a/packages/vue/src/dropdown/src/pc.vue
+++ b/packages/vue/src/dropdown/src/pc.vue
@@ -103,8 +103,8 @@ export default defineComponent({
     const triggerClass = 'tiny-dropdown__trigger tiny-dropdown-trigger'
     const visibleClass = state.visible ? 'tiny-dropdown--visible tiny-dropdown-visible' : ''
 
-    const IconDown = state?.designConfig?.icons?.dropdownIcon || iconDeltaDown()
-    const ButtonIconDown = state?.designConfig?.icons?.dropdownIcon || iconDownWard()
+    const IconDown = state.designConfig?.icons?.dropdownIcon || iconDeltaDown()
+    const ButtonIconDown = state.designConfig?.icons?.dropdownIcon || iconDownWard()
     const defaultSlot = slots.default && slots.default(params)
 
     if (splitButton) {