diff --git a/frontend/src/components/competition/ProjectSubmission.jsx b/frontend/src/components/competition/ProjectSubmission.jsx
index 101f8d1..dfb2f8c 100644
--- a/frontend/src/components/competition/ProjectSubmission.jsx
+++ b/frontend/src/components/competition/ProjectSubmission.jsx
@@ -1,7 +1,7 @@
 import React, { useState, useEffect } from 'react';
 import { Button, Form, Input, Upload, App, Modal, Progress, Space } from 'antd';
 import { CloudUploadOutlined, LinkOutlined, FileTextOutlined, DownloadOutlined, FilePdfOutlined, FilePptOutlined, VideoCameraOutlined, PictureOutlined } from '@ant-design/icons';
-import { useMutation, useQueryClient } from '@tanstack/react-query';
+import { useQueryClient } from '@tanstack/react-query';
 import { createProject, updateProject, submitProject, uploadProjectFile, getProjects } from '../../api';
 
 const { TextArea } = Input;
@@ -22,10 +22,6 @@ const getFileIcon = (fileType) => {
   }
 };
 
-const getFileUrl = (file) => {
-  return file.file_url_display || file.file_url || (file.file ? URL.createObjectURL(file.file) : null);
-};
-
 const ProjectSubmission = ({ competitionId, initialValues, onCancel, onSuccess }) => {
   const { message, modal } = App.useApp();
   const [form] = Form.useForm();
@@ -167,6 +163,12 @@ const ProjectSubmission = ({ competitionId, initialValues, onCancel, onSuccess }
 
   const onFinish = async (values) => {
     setIsCreatingProject(true);
+    
+    console.log('onFinish values:', values);
+    console.log('competitionId:', competitionId);
+    
+    const hasFiles = pendingAttachments.length > 0 || pendingCoverImage;
+    
     const data = {
       ...values,
       competition: competitionId,
@@ -182,18 +184,25 @@ const ProjectSubmission = ({ competitionId, initialValues, onCancel, onSuccess }
       onSuccess();
     } else {
       try {
-        const res = await createProject(data);
-        const projectId = res.data.id;
+        let projectId;
         
-        if (pendingAttachments.length > 0 || pendingCoverImage) {
+        if (hasFiles) {
+          const res = await createProject(data);
+          projectId = res.data.id;
           await uploadPendingFiles(projectId);
+          message.success('项目创建成功，文件上传完成');
+        } else {
+          const res = await createProject(data);
+          projectId = res.data.id;
+          message.success('项目创建成功');
         }
         
-        message.success('项目创建成功');
         queryClient.invalidateQueries(['projects']);
         onSuccess();
       } catch (error) {
-        message.error(`创建失败: ${error.response?.data?.detail || error.message}`);
+        console.error('创建项目失败:', error);
+        const errorMsg = error.response?.data?.detail || error.response?.data?.message || JSON.stringify(error.response?.data) || error.message;
+        message.error(`创建失败: ${errorMsg}`);
       }
     }
     setIsCreatingProject(false);
@@ -375,7 +384,7 @@ const ProjectSubmission = ({ competitionId, initialValues, onCancel, onSuccess }
               maxCount={5}
               accept=".ppt,.pptx,.pdf,.mp4,.mov,.avi,.webm,.jpg,.jpeg,.png,.gif,.webp,.doc,.docx"
               beforeUpload={(file) => {
-                console.log('beforeUpload triggered for:', file.name);
+                console.log('beforeUpload triggered for:', file.name, 'initialValues:', initialValues);
                 const allowedExtensions = ['ppt', 'pptx', 'pdf', 'mp4', 'mov', 'avi', 'webm', 'jpg', 'jpeg', 'png', 'gif', 'webp', 'doc', 'docx'];
                 const fileExt = file.name.split('.').pop()?.toLowerCase();
                 
@@ -390,7 +399,10 @@ const ProjectSubmission = ({ competitionId, initialValues, onCancel, onSuccess }
                   return Upload.LIST_IGNORE;
                 }
                 
-                if (initialValues?.id) {
+                const hasProjectId = initialValues?.id;
+                console.log('hasProjectId:', hasProjectId);
+                
+                if (hasProjectId) {
                   console.log('beforeUpload passed, manually calling handleUpload');
                   handleUpload({ file, onSuccess: () => {}, onError: () => {} });
                 } else {