diff --git a/src/components/Upload/index.d.ts b/src/components/Upload/index.d.ts
index dacc23a..bcce68a 100644
--- a/src/components/Upload/index.d.ts
+++ b/src/components/Upload/index.d.ts
@@ -11,7 +11,7 @@ export interface UploadProps extends Omit<AntUploadProps, "fileList"> {
   ratio?: `${number}*${number}`;
   /** 是否显示提示，默认 true */
   showTip?: boolean;
-  /** 文件大小限制（单位：MB） */
+  /** 文件大小限制（单位：MB），默认 10 */
   size?: number;
   /** 自定义提示内容 */
   tipContent?: ReactNode;
diff --git a/src/components/Upload/index.js b/src/components/Upload/index.js
index b371bbf..5a82326 100644
--- a/src/components/Upload/index.js
+++ b/src/components/Upload/index.js
@@ -103,7 +103,7 @@ const Upload = (props) => {
       return externalSize;
     if (isVideoType)
       return 100;
-    return 0;
+    return 10;
   };
   const size = getSize();