diff --git a/backend/community/views.py b/backend/community/views.py
index 5511cc4..6361dcd 100644
--- a/backend/community/views.py
+++ b/backend/community/views.py
@@ -343,6 +343,8 @@ class ReplyViewSet(viewsets.ModelViewSet):
         return Response({'liked': liked, 'count': obj.likes.count()})
 
 import requests
+import warnings
+warnings.filterwarnings('ignore', message='Unverified HTTPS request')
 
 class TopicMediaViewSet(viewsets.ViewSet):
     """
@@ -367,7 +369,8 @@ class TopicMediaViewSet(viewsets.ViewSet):
         
         try:
             # 这里的 headers 不需要 Content-Type，requests 会自动设置 multipart/form-data
-            response = requests.post(upload_url, files=files, timeout=30)
+            # 注意: verify=False 跳过SSL证书验证（data.tangledup-ai.com 证书已过期）
+            response = requests.post(upload_url, files=files, timeout=30, verify=False)
             
             if response.status_code == 200:
                 data = response.json()
diff --git a/frontend/src/components/competition/ProjectSubmission.jsx b/frontend/src/components/competition/ProjectSubmission.jsx
index cbd52fd..101f8d1 100644
--- a/frontend/src/components/competition/ProjectSubmission.jsx
+++ b/frontend/src/components/competition/ProjectSubmission.jsx
@@ -31,6 +31,9 @@ const ProjectSubmission = ({ competitionId, initialValues, onCancel, onSuccess }
   const [form] = Form.useForm();
   const [uploadedFiles, setUploadedFiles] = useState([]);
   const [uploadingFiles, setUploadingFiles] = useState({});
+  const [pendingCoverImage, setPendingCoverImage] = useState(null);
+  const [pendingAttachments, setPendingAttachments] = useState([]);
+  const [isCreatingProject, setIsCreatingProject] = useState(false);
   const queryClient = useQueryClient();
 
   useEffect(() => {
@@ -66,30 +69,6 @@ const ProjectSubmission = ({ competitionId, initialValues, onCancel, onSuccess }
     }
   }, [initialValues, form]);
 
-  const createMutation = useMutation({
-    mutationFn: createProject,
-    onSuccess: () => {
-      message.success('项目创建成功');
-      queryClient.invalidateQueries(['projects']);
-      onSuccess();
-    },
-    onError: (error) => {
-      message.error(`创建失败: ${error.response?.data?.detail || error.message}`);
-    }
-  });
-
-  const updateMutation = useMutation({
-    mutationFn: (data) => updateProject(initialValues.id, data),
-    onSuccess: () => {
-      message.success('项目更新成功');
-      queryClient.invalidateQueries(['projects']);
-      onSuccess();
-    },
-    onError: (error) => {
-      message.error(`更新失败: ${error.response?.data?.detail || error.message}`);
-    }
-  });
-
   const handleUpload = ({ file, onSuccess, onError }) => {
     console.log('handleUpload called', file.name);
     
@@ -144,17 +123,80 @@ const ProjectSubmission = ({ competitionId, initialValues, onCancel, onSuccess }
       });
   };
 
-  const onFinish = (values) => {
+  const uploadPendingFiles = async (projectId) => {
+    const uploadedFilesList = [];
+    
+    if (pendingCoverImage) {
+      try {
+        const formData = new FormData();
+        formData.append('file', pendingCoverImage);
+        const res = await uploadProjectFile(formData);
+        const imageUrl = res.data.file_url_display || res.data.file_url;
+        await updateProject(projectId, { cover_image_url: imageUrl });
+        setPendingCoverImage(null);
+      } catch (err) {
+        console.error('封面上传失败:', err);
+      }
+    }
+    
+    for (const file of pendingAttachments) {
+      try {
+        const formData = new FormData();
+        formData.append('file', file);
+        formData.append('project', projectId);
+        const res = await uploadProjectFile(formData);
+        uploadedFilesList.push({
+          uid: res.data.id,
+          id: res.data.id,
+          name: res.data.name || file.name,
+          url: res.data.file_url_display || res.data.file_url,
+          fileType: res.data.file_type,
+          status: 'done'
+        });
+      } catch (err) {
+        console.error('文件上传失败:', err);
+        message.error(`文件 ${file.name} 上传失败`);
+      }
+    }
+    
+    if (uploadedFilesList.length > 0) {
+      setUploadedFiles(prev => [...prev, ...uploadedFilesList]);
+    }
+    setPendingAttachments([]);
+  };
+
+  const onFinish = async (values) => {
+    setIsCreatingProject(true);
     const data = {
       ...values,
       competition: competitionId,
     };
 
     if (initialValues?.id) {
-      updateMutation.mutate(data);
+      await updateProject(initialValues.id, data);
+      if (pendingAttachments.length > 0) {
+        await uploadPendingFiles(initialValues.id);
+      }
+      message.success('项目更新成功');
+      queryClient.invalidateQueries(['projects']);
+      onSuccess();
     } else {
-      createMutation.mutate(data);
+      try {
+        const res = await createProject(data);
+        const projectId = res.data.id;
+        
+        if (pendingAttachments.length > 0 || pendingCoverImage) {
+          await uploadPendingFiles(projectId);
+        }
+        
+        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}`);
+      }
     }
+    setIsCreatingProject(false);
   };
 
   return (
@@ -205,12 +247,13 @@ const ProjectSubmission = ({ competitionId, initialValues, onCancel, onSuccess }
           label="封面图片"
           extra="支持上传本地图片，自动转换为URL"
         >
-          {initialValues ? (
-            <Upload 
-              showUploadList={false}
-              accept="image/*"
-              beforeUpload={(file) => {
-                console.log('Cover image selected:', file.name);
+          <Upload 
+            showUploadList={false}
+            accept="image/*"
+            beforeUpload={(file) => {
+              console.log('Cover image selected:', file.name);
+              
+              if (initialValues?.id) {
                 const formData = new FormData();
                 formData.append('file', file);
                 
@@ -223,13 +266,21 @@ const ProjectSubmission = ({ competitionId, initialValues, onCancel, onSuccess }
                   .catch(err => {
                     message.error(`上传失败: ${err.response?.data?.detail || err.message}`);
                   });
-                
-                return Upload.LIST_IGNORE;
-              }}
-            >
-              <Button icon={<CloudUploadOutlined />}>选择图片</Button>
-            </Upload>
-          ) : null}
+              } else {
+                setPendingCoverImage(file);
+                const reader = new FileReader();
+                reader.onload = () => {
+                  form.setFieldsValue({ cover_image_url: reader.result });
+                };
+                reader.readAsDataURL(file);
+                message.info('封面已选择，提交时将自动上传');
+              }
+              
+              return Upload.LIST_IGNORE;
+            }}
+          >
+            <Button icon={<CloudUploadOutlined />}>选择图片</Button>
+          </Upload>
           <Input 
             placeholder="上传图片或输入URL" 
             style={{ marginTop: 8 }}
@@ -237,10 +288,41 @@ const ProjectSubmission = ({ competitionId, initialValues, onCancel, onSuccess }
           />
         </Form.Item>
         
-        {initialValues?.id && (
+        {(
           <Form.Item label="项目附件 (PPT/PDF/视频/图片)">
+            {!initialValues?.id && pendingAttachments.length > 0 && (
+              <div style={{ marginBottom: 16 }}>
+                <div style={{ color: '#999', fontStyle: 'italic', marginBottom: 8 }}>待上传文件：</div>
+                <Space orientation="vertical" style={{ width: '100%' }} size="middle">
+                  {pendingAttachments.map((file, index) => (
+                    <div key={index} style={{ 
+                      display: 'flex', 
+                      alignItems: 'center', 
+                      padding: '12px 16px', 
+                      background: '#fff7e6', 
+                      borderRadius: 8,
+                      border: '1px solid #ffd591'
+                    }}>
+                      <span style={{ fontSize: 20, marginRight: 12 }}>
+                        {getFileIcon(file.name.split('.').pop()?.toLowerCase())}
+                      </span>
+                      <span style={{ flex: 1, fontWeight: 500 }}>{file.name}</span>
+                      <Button 
+                        type="link" 
+                        danger
+                        onClick={() => {
+                          setPendingAttachments(prev => prev.filter((_, i) => i !== index));
+                        }}
+                      >
+                        删除
+                      </Button>
+                    </div>
+                  ))}
+                </Space>
+              </div>
+            )}
             <div style={{ marginBottom: 16 }}>
-              {uploadedFiles.length === 0 ? (
+              {uploadedFiles.length === 0 && initialValues?.id ? (
                 <div style={{ color: '#999', fontStyle: 'italic' }}>暂无上传文件</div>
               ) : (
                 <Space orientation="vertical" style={{ width: '100%' }} size="middle">
@@ -307,8 +389,18 @@ const ProjectSubmission = ({ competitionId, initialValues, onCancel, onSuccess }
                   message.error('文件大小不能超过 50MB');
                   return Upload.LIST_IGNORE;
                 }
-                console.log('beforeUpload passed, manually calling handleUpload');
-                handleUpload({ file, onSuccess: () => {}, onError: () => {} });
+                
+                if (initialValues?.id) {
+                  console.log('beforeUpload passed, manually calling handleUpload');
+                  handleUpload({ file, onSuccess: () => {}, onError: () => {} });
+                } else {
+                  if (pendingAttachments.length >= 5) {
+                    message.warning('最多只能上传5个文件');
+                    return Upload.LIST_IGNORE;
+                  }
+                  setPendingAttachments(prev => [...prev, file]);
+                  message.info('文件已添加到待上传列表，提交时将自动上传');
+                }
                 return Upload.LIST_IGNORE;
               }}
             >
@@ -320,7 +412,7 @@ const ProjectSubmission = ({ competitionId, initialValues, onCancel, onSuccess }
         <Form.Item>
           <div style={{ display: 'flex', justifyContent: 'flex-end', gap: 10 }}>
             <Button onClick={onCancel}>取消</Button>
-            <Button type="primary" htmlType="submit" loading={createMutation.isLoading || updateMutation.isLoading}>
+            <Button type="primary" htmlType="submit" loading={isCreatingProject}>
               {initialValues?.id ? '保存修改' : '保存草稿'}
             </Button>
             {initialValues?.id && (