diff --git a/src/components/common/ImageUpload.md b/src/components/common/ImageUpload.md
index 36f2aea..2eead57 100644
--- a/src/components/common/ImageUpload.md
+++ b/src/components/common/ImageUpload.md
@@ -9,24 +9,24 @@
 - 支持上传进度显示
 - 支持图片预览
 - 支持多文件上传
-- 上传成功后自动回传URL
+- 上传成功后自动回传 URL
 
 ## Props
 
-| 参数 | 类型 | 默认值 | 说明 |
-|------|------|--------|------|
-| modelValue | UploadFile[] | [] | 文件列表，支持v-model |
-| uploadType | UploadType | - | 上传类型：1合同模版，2图片 |
-| maxSize | number | 10 * 1024 * 1024 | 最大文件大小（字节） |
-| maxCount | number | - | 最大上传数量 |
+| 参数       | 类型         | 默认值           | 说明                         |
+| ---------- | ------------ | ---------------- | ---------------------------- |
+| modelValue | UploadFile[] | []               | 文件列表，支持 v-model       |
+| uploadType | UploadType   | -                | 上传类型：1 合同模版，2 图片 |
+| maxSize    | number       | 10 _ 1024 _ 1024 | 最大文件大小（字节）         |
+| maxCount   | number       | -                | 最大上传数量                 |
 
 ## Events
 
-| 事件名 | 参数 | 说明 |
-|--------|------|------|
-| update:modelValue | (value: UploadFile[]) | 文件列表更新时触发 |
-| upload-success | (file: UploadFile, response: UploadResponse) | 上传成功时触发 |
-| upload-error | (error: Error) | 上传失败时触发 |
+| 事件名            | 参数                                         | 说明               |
+| ----------------- | -------------------------------------------- | ------------------ |
+| update:modelValue | (value: UploadFile[])                        | 文件列表更新时触发 |
+| upload-success    | (file: UploadFile, response: UploadResponse) | 上传成功时触发     |
+| upload-error      | (error: Error)                               | 上传失败时触发     |
 
 ## 类型定义
 
@@ -42,7 +42,8 @@ interface UploadFile {
 interface UploadResponse {
   filename: string;
   size: number;
-  url: string;
+  signedPutURL: string;
+  objectKey?: string;
 }
 
 type UploadType = 1 | 2; // 1合同模版，2图片
@@ -63,18 +64,18 @@ type UploadType = 1 | 2; // 1合同模版，2图片
 </template>
 
 <script setup>
-import { ref } from 'vue';
-import ImageUpload from '@/components/common/ImageUpload.vue';
+  import { ref } from 'vue';
+  import ImageUpload from '@/components/common/ImageUpload.vue';
 
-const images = ref([]);
+  const images = ref([]);
 
-const handleUploadSuccess = (file, response) => {
-  console.log('上传成功:', response.url);
-};
+  const handleUploadSuccess = (file, response) => {
+    console.log('上传成功:', response.url);
+  };
 
-const handleUploadError = (error) => {
-  console.error('上传失败:', error.message);
-};
+  const handleUploadError = (error) => {
+    console.error('上传失败:', error.message);
+  };
 </script>
 ```
 
@@ -110,6 +111,6 @@ const handleUploadError = (error) => {
 ## 注意事项
 
 1. 组件会自动处理文件验证，包括文件大小和格式检查
-2. 上传成功后，文件对象会自动更新URL和状态
-3. 支持v-model双向绑定，父组件可以直接操作文件列表
-4. 上传类型必须从父组件传入，用于区分不同的上传场景 
\ No newline at end of file
+2. 上传成功后，文件对象会自动更新 URL 和状态
+3. 支持 v-model 双向绑定，父组件可以直接操作文件列表
+4. 上传类型必须从父组件传入，用于区分不同的上传场景
diff --git a/src/components/common/ImageUpload.vue b/src/components/common/ImageUpload.vue
index cbc5fac..d34a584 100644
--- a/src/components/common/ImageUpload.vue
+++ b/src/components/common/ImageUpload.vue
@@ -1,7 +1,7 @@
 <template>
   <a-upload
     :list-type="listType"
-    :accept="'image/*'"
+    accept="image/*"
     :custom-request="customRequest"
     :file-list="fileList"
     :multiple="maxCount > 1"
@@ -22,48 +22,52 @@
     url?: string;
     status: 'done' | 'uploading' | 'error';
     percent?: number;
+    objectKey?: string;
   }
 
   interface UploadResponse {
     filename: string;
     size: number;
-    url: string;
+    signedPutURL: string;
+    objectKey: string;
   }
 
   const props = defineProps<{
-    modelValue: string[]; // 只暴露图片url数组
+    objectKeys: string[]; // 提交用的 Key 数组
+    signedPutURL: string[]; // 显示用 URL 数组
     uploadType: UploadType;
-    maxSize?: number; // 默认10MB
-    maxCount?: number; // 最大上传数量，默认1（单图）
-    listType?: 'text' | 'picture' | 'picture-card'; // 上传样式
+    maxSize?: number;
+    maxCount?: number;
+    listType?: 'text' | 'picture' | 'picture-card';
   }>();
 
   const emit = defineEmits<{
-    (e: 'update:modelValue', value: string[]): void;
-    (e: 'upload-success', url: string): void;
+    (e: 'update:objectKeys', value: string[]): void;
+    (e: 'update:signedPutURL', value: string[]): void;
+    (
+      e: 'upload-success',
+      payload: { objectKey: string; signedPutURL: string }
+    ): void;
     (e: 'upload-error', error: Error): void;
   }>();
 
   const fileList = ref<UploadFile[]>([]);
-
-  // 默认最大上传数：1（单图）
   const maxCount = props.maxCount ?? 1;
-
-  // listType 默认值
   const listType = props.listType ?? 'picture-card';
 
-  // 将外部 url[] 映射为 UploadFile[]
+  // 回显处理（编辑/刷新时）
   watch(
-    () => props.modelValue,
-    (newVal) => {
-      fileList.value = (newVal || []).map((url, index) => ({
-        uid: `${index}`,
-        name: `图片-${index + 1}`,
-        url,
+    () => [props.objectKeys, props.signedPutURL],
+    ([keys, urls]) => {
+      fileList.value = (keys || []).map((key, idx) => ({
+        uid: `${idx}`,
+        name: key.split('/').pop() || `图片-${idx + 1}`,
+        url: urls[idx] || '',
+        objectKey: key,
         status: 'done',
       }));
     },
-    { immediate: true }
+    { immediate: true, deep: true }
   );
 
   // 自定义上传请求
@@ -80,15 +84,12 @@
         'image/webp',
       ];
 
-      // 文件大小校验
       if (file.size > maxSize) {
         onError(
           new Error(`文件大小不能超过${Math.round(maxSize / 1024 / 1024)}MB`)
         );
         return;
       }
-
-      // 文件类型校验
       if (!allowedTypes.includes(file.type)) {
         onError(new Error('只支持 JPG、PNG、GIF、WEBP 格式的图片'));
         return;
@@ -114,44 +115,54 @@
       clearInterval(progressInterval);
 
       if (code === 200 && data) {
-        const response = data as UploadResponse;
-
+        const res = data as UploadResponse;
         fileItem.status = 'done';
-        fileItem.url = response.url;
+        fileItem.url = res.signedPutURL;
+        fileItem.objectKey = res.objectKey;
         onProgress({ percent: 100 });
-        onSuccess(response);
+        onSuccess(res);
 
-        // 新的图片 url
-        let updatedUrls = [...props.modelValue];
+        // 更新父组件两个数组
+        let newKeys = [...props.objectKeys];
+        let newUrls = [...props.signedPutURL];
         if (maxCount === 1) {
-          updatedUrls = [response.url];
+          newKeys = [res.objectKey];
+          newUrls = [res.signedPutURL];
         } else {
-          updatedUrls.push(response.url);
-          // 截取至 maxCount
-          updatedUrls = updatedUrls.slice(0, maxCount);
+          newKeys.push(res.objectKey);
+          newUrls.push(res.signedPutURL);
+          newKeys = newKeys.slice(0, maxCount);
+          newUrls = newUrls.slice(0, maxCount);
         }
-
-        emit('update:modelValue', updatedUrls);
-        emit('upload-success', response.url);
+        emit('update:objectKeys', newKeys);
+        emit('update:signedPutURL', newUrls);
+        emit('upload-success', {
+          objectKey: res.objectKey,
+          signedPutURL: res.signedPutURL,
+        });
       } else {
         const error = new Error(message || '上传失败');
         onError(error);
         emit('upload-error', error);
       }
-    } catch (error) {
-      const err = error instanceof Error ? error : new Error('上传失败');
+    } catch (e) {
+      const err = e instanceof Error ? e : new Error('上传失败');
       onError(err);
       emit('upload-error', err);
     }
   };
 
-  // 同步 fileList（删除时触发）
+  // 删除文件时同步更新父组件
   const handleChange = (newFileList: UploadFile[]) => {
-    const validUrls = newFileList
+    const newKeys = newFileList
+      .filter((f) => f.status === 'done' && f.objectKey)
+      .map((f) => f.objectKey!);
+    const newUrls = newFileList
       .filter((f) => f.status === 'done' && f.url)
       .map((f) => f.url!);
 
-    emit('update:modelValue', validUrls);
+    emit('update:objectKeys', newKeys);
+    emit('update:signedPutURL', newUrls);
   };
 </script>
 
diff --git a/src/types/business.ts b/src/types/business.ts
index 2fd5a7d..7575088 100644
--- a/src/types/business.ts
+++ b/src/types/business.ts
@@ -72,15 +72,16 @@ export type ProjectListRes = HttpResponse<{
   projectsList?: ProjectItem[];
 }>;
 export interface CreateProjectParam {
-  id?: number;
+  id?: number | null;
   type: ProjectType; // 项目类型：1写字楼，2商业综合体，3园区
   name: string; // 楼栋名称
   province_id: number | null; // 省份id
   city_id: number | null; // 城市id
   district_id: number | null; // 区域id
   address: string; // 详细地址
-  images: string[]; // 图片数组
-  buildings: BuildingItem[]; // 楼栋数据
+  objectKeys: string[]; // 存储给后端的 key
+  signedPutURL: string[]; // 存储已签名 URL
+  buildings: BuildingItem[];
 }
 export interface BuildingInfo extends BaseEntity {
   projectId: number; // 项目id
diff --git a/src/views/business/project/drawer/project-form-drawer.vue b/src/views/business/project/drawer/project-form-drawer.vue
index 0cc9ef1..2badfc9 100644
--- a/src/views/business/project/drawer/project-form-drawer.vue
+++ b/src/views/business/project/drawer/project-form-drawer.vue
@@ -104,12 +104,13 @@
           </a-col>
         </a-row>
       </a-form-item>
-      <a-form-item label="项目图片" field="images">
+      <a-form-item label="项目图片" field="objectKeys">
         <ImageUpload
-          v-model="form.images"
+          v-model:object-keys="form.objectKeys"
+          v-model:signed-put-u-r-l="form.signedPutURL"
           :upload-type="2"
           :max-count="5"
-          :list-type="'picture-card'"
+          list-type="picture-card"
         />
       </a-form-item>
       <a-form-item>
@@ -214,13 +215,15 @@
   const formRef = ref<FormInstance>();
 
   const defaultForm: CreateProjectParam = {
+    id: null,
     type: 1 as ProjectType, // 项目类型：1写字楼，2商业综合体，3园区
     name: '', // 楼栋名称
     province_id: null, // 省份id
     city_id: null, // 城市id
     district_id: null, // 区域id
     address: '', // 详细地址
-    images: [], // 图片数组
+    objectKeys: [], // 图片数组
+    signedPutURL: [], // 图片数组
     buildings: [createEmptyBuilding()], // 楼栋数据
   };
   const form = reactive<CreateProjectParam>({ ...defaultForm });
@@ -306,7 +309,7 @@
             });
           }
           if (record?.imageUrls?.length) {
-            record.images = record?.imageUrls;
+            record.objectKeys = record?.imageUrls;
           }
           form.name = record.name;
           Object.keys(form).forEach((key) => {
@@ -330,7 +333,6 @@
     },
     { immediate: true }
   );
-
   const handleOk = async () => {
     if (isLoading.value) return;
     try {
@@ -345,9 +347,10 @@
           id: item?.id,
         };
       });
-      const params = {
+      const params: any = {
         ...form,
       };
+      delete params.signedPutURL;
       const res = props?.isEdit
         ? await updateProject(params)
         : await createProject(params);