diff --git a/frontend/src/components/competition/ProjectSubmission.jsx b/frontend/src/components/competition/ProjectSubmission.jsx
index 8463eaf..3026922 100644
--- a/frontend/src/components/competition/ProjectSubmission.jsx
+++ b/frontend/src/components/competition/ProjectSubmission.jsx
@@ -47,6 +47,7 @@ const ProjectSubmission = ({ competitionId, initialValues, onCancel, onSuccess }
               name: file.name || '未命名文件',
               url: file.file_url_display || file.file_url,
               fileType: file.file_type,
+              file_size_display: file.file_size_display,
               status: 'done'
             }));
             setUploadedFiles(files);
@@ -376,7 +377,12 @@ const ProjectSubmission = ({ competitionId, initialValues, onCancel, onSuccess }
                       <span style={{ fontSize: 20, marginRight: 12 }}>
                         {getFileIcon(file.fileType)}
                       </span>
-                      <span style={{ flex: 1, fontWeight: 500 }}>{file.name}</span>
+                      <div style={{ flex: 1 }}>
+                        <div style={{ fontWeight: 500 }}>{file.name || '未命名文件'}</div>
+                        {file.file_size_display && (
+                          <div style={{ fontSize: 12, color: '#999' }}>{file.file_size_display}</div>
+                        )}
+                      </div>
                       {file.url && (
                         <Button 
                           type="link" 
@@ -453,6 +459,7 @@ const ProjectSubmission = ({ competitionId, initialValues, onCancel, onSuccess }
                         name: res.data.name || file.name,
                         url: res.data.file_url_display || res.data.file_url,
                         fileType: res.data.file_type,
+                        file_size_display: res.data.file_size_display,
                         status: 'done'
                       };