diff --git a/app/api/cross-checking/cross-files-upload.ts b/app/api/cross-checking/cross-files-upload.ts
index d2b674a..1ef7341 100644
--- a/app/api/cross-checking/cross-files-upload.ts
+++ b/app/api/cross-checking/cross-files-upload.ts
@@ -1,5 +1,6 @@
 import { UPLOAD_URL, API_BASE_URL } from '../../config/api-config';
 import axios from 'axios';
+import { CONTRACT_TYPES, DEFAULT_CONTRACT_TYPE } from '~/constants/contractTypes';
 
 /**
  * 从不同格式的 API 响应中提取数据
@@ -224,7 +225,8 @@ export async function batchUploadAndAssignCrossCheckingFiles(
   docType: string,
   taskType: string = '市局间交叉评查',
   token: string | null = null,
-  principalUserIds: number[] = []
+  principalUserIds: number[] = [],
+  attributeType?: string
 ): Promise<{
   successes: Array<{file: CrossCheckingUploadedFile; result: Record<string, unknown>}>;
   failures: Array<{file: CrossCheckingUploadedFile; error: string}>;
@@ -249,7 +251,8 @@ export async function batchUploadAndAssignCrossCheckingFiles(
         is_test_document: isTestDocument,
         task_name: taskName,
         doc_type: typeof docType === 'string' ? docType.toUpperCase() : docType,
-        task_type: taskType
+        task_type: taskType,
+        attribute_type: attributeType || null
       };
       // console.log('fileInfo', fileInfo)
 
diff --git a/app/routes/cross-checking.upload.tsx b/app/routes/cross-checking.upload.tsx
index 3fea53f..212d297 100644
--- a/app/routes/cross-checking.upload.tsx
+++ b/app/routes/cross-checking.upload.tsx
@@ -32,6 +32,7 @@ import {
   type UserInfo
 } from "~/api/user/user-management";
 import { API_BASE_URL } from '~/config/api-config';
+import { CONTRACT_TYPES, DEFAULT_CONTRACT_TYPE } from '~/constants/contractTypes';
 
 export const meta: MetaFunction = () => {
     return [
@@ -173,6 +174,7 @@ export default function CrossCheckingUpload() {
     const [documentNumber] = useState<string>("");
     const [remark] = useState<string>("");
     const [isTestDocument] = useState<boolean>(false);
+    const [attributeType, setAttributeType] = useState<string>(DEFAULT_CONTRACT_TYPE);
 
     // 文件管理状态 - 简化为单文件上传
     const [uploadedFile, setUploadedFile] = useState<CrossCheckingUploadedFile | null>(null);
@@ -358,7 +360,8 @@ export default function CrossCheckingUpload() {
                 selectedDocType.code, // 使用文档类型code
                 taskInfo.type, // 使用任务类型（市局间交叉评查 或 区局间交叉评查）
                 frontendJWT,
-                principalUserIds // 负责人ID数组
+                principalUserIds, // 负责人ID数组
+                attributeType // 合同类型
             );
 
 
@@ -987,6 +990,32 @@ export default function CrossCheckingUpload() {
                                 </div>
                             </div>
 
+                            {/* 合同类型选择器 - 仅在选择合同类型文档时显示 */}
+                            {selectedDocTypeId === 1 && (
+                                <div className="flex justify-center mb-6">
+                                    <div className="w-full max-w-2xl">
+                                        <div className="text-sm font-medium text-gray-700 mb-3 text-center">选择合同类型（可选）</div>
+                                        <div className="grid grid-cols-4 gap-2">
+                                            {CONTRACT_TYPES.map((type) => (
+                                                <button
+                                                    key={type.value}
+                                                    type="button"
+                                                    className={`px-3 py-2 text-sm rounded-md border transition-colors ${
+                                                        attributeType === type.value
+                                                            ? 'bg-[var(--color-primary)] text-white border-[var(--color-primary)]'
+                                                            : 'bg-white text-gray-700 border-gray-300 hover:bg-gray-50'
+                                                    }`}
+                                                    onClick={() => setAttributeType(type.value)}
+                                                    disabled={isUploading}
+                                                >
+                                                    {type.label}
+                                                </button>
+                                            ))}
+                                        </div>
+                                    </div>
+                                </div>
+                            )}
+
                             {/* 文件上传区域 - 左右布局 */}
                             <input type="hidden" name="selectedDocTypeId" value={selectedDocTypeId || ''} />