diff --git a/frontend/app.js b/frontend/app.js
index 6e82c8a..3c5a4a2 100644
--- a/frontend/app.js
+++ b/frontend/app.js
@@ -1436,6 +1436,7 @@ handleDragLeave(e) {
             'Authorization': `Bearer ${this.token}`,
             'Content-Type': 'multipart/form-data'
           },
+          timeout: 30 * 60 * 1000, // 30分钟超时，支持大文件上传
           onUploadProgress: (progressEvent) => {
             this.uploadProgress = Math.round((progressEvent.loaded * 100) / progressEvent.total);
             this.uploadedBytes = progressEvent.loaded;
diff --git a/nginx/nginx.conf b/nginx/nginx.conf
index 2fe78f7..740be5b 100644
--- a/nginx/nginx.conf
+++ b/nginx/nginx.conf
@@ -49,10 +49,16 @@ server {
         proxy_set_header Cookie $http_cookie;
         proxy_pass_header Set-Cookie;
 
-        # 增加超时时间支持大文件上传
-        proxy_connect_timeout 300;
-        proxy_send_timeout 300;
-        proxy_read_timeout 300;
+        # 增加超时时间支持大文件上传（30分钟）
+        proxy_connect_timeout 1800;
+        proxy_send_timeout 1800;
+        proxy_read_timeout 1800;
+        send_timeout 1800;
+
+        # 大文件上传缓冲优化
+        proxy_request_buffering off;
+        proxy_buffering off;
+        client_body_buffer_size 128k;
     }
 
     # 分享链接重定向