diff --git a/examples/sites/demos/apis/pop-upload.js b/examples/sites/demos/apis/pop-upload.js
index b3c4539e2..857ad5840 100644
--- a/examples/sites/demos/apis/pop-upload.js
+++ b/examples/sites/demos/apis/pop-upload.js
@@ -158,7 +158,7 @@ export default {
         },
         {
           name: 'size',
-          type: 'string',
+          type: `'large' | 'medium' | 'small' | 'mini'`,
           defaultValue: '',
           desc: {
             'zh-CN': '设置组件大小',
diff --git a/examples/sites/demos/pc/app/pop-upload/webdoc/pop-upload.js b/examples/sites/demos/pc/app/pop-upload/webdoc/pop-upload.js
index f4f87ab97..df9b15857 100644
--- a/examples/sites/demos/pc/app/pop-upload/webdoc/pop-upload.js
+++ b/examples/sites/demos/pc/app/pop-upload/webdoc/pop-upload.js
@@ -40,7 +40,7 @@ export default {
       },
       desc: {
         'zh-CN':
-          '通过 <code>medium</code>，<code>small</code>，<code>mini</code> 设置组件尺寸，<code>disabled</code> 设置是否禁用，默认值为 false。',
+          '通过 <code>large</code>，<code>medium</code>，<code>small</code>，<code>mini</code> 设置组件尺寸，<code>disabled</code> 设置是否禁用，默认值为 false。',
         'en-US':
           'Set the component size through<code>media</code>,<code>small</code>,<code>mini</code>, and whether to <code>disabled</code> it. The default value is false.'
       },
@@ -189,11 +189,11 @@ export default {
       support: {
         value: true
       },
-      description: '通过 medium、small、mini 设置组件尺寸，disabled 设置是否禁用。',
+      description: '通过 large、medium、small、mini 设置组件尺寸，disabled 设置是否禁用。',
       cloud: {
         value: false
       },
-      apis: ['medium', 'small', 'mini', 'disabled'],
+      apis: ['large', 'medium', 'small', 'mini', 'disabled'],
       demos: ['size']
     },
     {
diff --git a/packages/vue/src/pop-upload/src/index.ts b/packages/vue/src/pop-upload/src/index.ts
index a7f551c50..9be8af803 100644
--- a/packages/vue/src/pop-upload/src/index.ts
+++ b/packages/vue/src/pop-upload/src/index.ts
@@ -41,7 +41,13 @@ export default defineComponent({
       type: Object,
       default: () => $constants
     },
-    size: String,
+    size: {
+      type: String,
+      default: '',
+      validator(val: string) {
+        return ['large', 'medium', 'small', 'mini', ''].includes(val)
+      }
+    },
     data: Object,
     uploadName: String,
     dialogTitle: {