diff --git a/src/api/system/oss/types.ts b/src/api/system/oss/types.ts
index 915f2231..befb3ab0 100644
--- a/src/api/system/oss/types.ts
+++ b/src/api/system/oss/types.ts
@@ -26,3 +26,17 @@ export interface OssQuery extends PageQuery {
 export interface OssForm {
   file: undefined | string;
 }
+
+export interface SysOssExt {
+  bizType?: string;
+  fileSize?: number;
+  contentType?: string;
+  source?: string;
+  uploadIp?: string;
+  remark?: string;
+  tags?: string[];
+  refId?: string;
+  refType?: string;
+  isTemp?: boolean;
+  md5?: string;
+}
diff --git a/src/components/FileUpload/index.vue b/src/components/FileUpload/index.vue
index 0897804c..9b5393e9 100644
--- a/src/components/FileUpload/index.vue
+++ b/src/components/FileUpload/index.vue
@@ -5,6 +5,7 @@
       multiple
       :action="uploadFileUrl"
       :before-upload="handleBeforeUpload"
+      :data="uploadData"
       :file-list="fileList"
       :limit="limit"
       :accept="fileAccept"
@@ -48,6 +49,7 @@
 
 <script setup lang="ts">
 import { delOss, listByIds } from '@/api/system/oss';
+import type { SysOssExt } from '@/api/system/oss/types';
 import modal from '@/plugins/modal';
 import { propTypes } from '@/utils/propTypes';
 import { globalHeaders } from '@/utils/request';
@@ -66,7 +68,12 @@ const props = defineProps({
   // 是否显示提示
   isShowTip: propTypes.bool.def(true),
   // 禁用组件（仅查看文件）
-  disabled: propTypes.bool.def(false)
+  disabled: propTypes.bool.def(false),
+  // 上传扩展属性
+  ossExt: {
+    type: Object as PropType<SysOssExt>,
+    default: undefined
+  }
 });
 
 const emit = defineEmits(['update:modelValue']);
@@ -82,6 +89,14 @@ const showTip = computed(() => props.isShowTip && (props.fileType || props.fileS
 
 const fileUploadRef = ref<ElUploadInstance>();
 
+// 上传附加数据（ossExt 扩展属性）
+const uploadData = computed(() => {
+  if (!props.ossExt) return {};
+  return {
+    ossExt: JSON.stringify(props.ossExt)
+  }
+});
+
 // 监听 fileType 变化，更新 fileAccept
 const fileAccept = computed(() => props.fileType.map(type => `.${type}`).join(','));
 
diff --git a/src/components/ImageUpload/index.vue b/src/components/ImageUpload/index.vue
index d9dd0fd5..1df5a5a0 100644
--- a/src/components/ImageUpload/index.vue
+++ b/src/components/ImageUpload/index.vue
@@ -7,6 +7,7 @@
       list-type="picture-card"
       :on-success="handleUploadSuccess"
       :before-upload="handleBeforeUpload"
+      :data="uploadData"
       :limit="limit"
       :accept="fileAccept"
       :on-error="handleUploadError"
@@ -45,7 +46,7 @@
 <script setup lang="ts">
 import { compressAccurately } from 'image-conversion';
 import { listByIds, delOss } from '@/api/system/oss';
-import { OssVO } from '@/api/system/oss/types';
+import type { OssVO, SysOssExt } from '@/api/system/oss/types';
 import modal from '@/plugins/modal';
 import { propTypes } from '@/utils/propTypes';
 import { globalHeaders } from '@/utils/request';
@@ -72,7 +73,12 @@ const props = defineProps({
     default: false
   },
   // 压缩目标大小，单位KB。默认300KB以上文件才压缩，并压缩至300KB以内
-  compressTargetSize: propTypes.number.def(300)
+  compressTargetSize: propTypes.number.def(300),
+  // 上传扩展属性
+  ossExt: {
+    type: Object as PropType<SysOssExt>,
+    default: undefined
+  }
 });
 
 const emit = defineEmits(['update:modelValue']);
@@ -90,6 +96,14 @@ const showTip = computed(() => props.isShowTip && (props.fileType || props.fileS
 
 const imageUploadRef = ref<ElUploadInstance>();
 
+// 上传附加数据（ossExt 扩展属性）
+const uploadData = computed(() => {
+  if (!props.ossExt) return {};
+  return {
+    ossExt: JSON.stringify(props.ossExt)
+  }
+});
+
 // 监听 fileType 变化，更新 fileAccept
 const fileAccept = computed(() => props.fileType.map(type => `.${type}`).join(','));