diff --git a/utils/yt-dlp-util.js b/utils/yt-dlp-util.js
index 06cf9ca..762dddc 100644
--- a/utils/yt-dlp-util.js
+++ b/utils/yt-dlp-util.js
@@ -88,12 +88,14 @@ export function ytDlpGetTilt(url, isOversea, proxy, cookiePath = "") {
  * @param isOversea
  * @param proxy
  * @param cookiePath
+ * @param thumbnailFilenamePrefix 缩略图文件名前缀 (不含扩展名)
  */
-export function ytDlpGetThumbnail(path, url, isOversea, proxy, cookiePath = "") {
+export function ytDlpGetThumbnail(path, url, isOversea, proxy, cookiePath = "", thumbnailFilenamePrefix = "thumbnail") {
     return new Promise((resolve, reject) => {
         // 构造 cookie 参数
         const cookieParam = constructCookiePath(url, cookiePath);
-        const command = `yt-dlp --write-thumbnail --convert-thumbnails png --skip-download ${cookieParam} ${constructProxyParam(isOversea, proxy)} ${url} -P "${path}" -o "thumbnail.%(ext)s"`;
+        const finalThumbnailName = thumbnailFilenamePrefix || "thumbnail"; // 确保有默认值
+        const command = `yt-dlp --write-thumbnail --convert-thumbnails png --skip-download ${cookieParam} ${constructProxyParam(isOversea, proxy)} ${url} -P "${path}" -o "${finalThumbnailName}.%(ext)s"`;
         exec(command, (error, stdout, stderr) => {
             if (error) {
                 logger.error(`[R插件][yt-dlp审计] Error executing ytDlpGetThumbnail: ${error}. Stderr: ${stderr}`);
@@ -116,22 +118,26 @@ export function ytDlpGetThumbnail(path, url, isOversea, proxy, cookiePath = "")
  * @param graphics   YouTube画质参数
  * @param timeRange  截取时间段
  * @param maxThreads 最大并发
+ * @param outputFilename 输出文件名 (不含扩展名)
  * @param cookiePath Cookie所在位置
  */
-export async function ytDlpHelper(path, url, isOversea, proxy, maxThreads, merge = false, graphics, timeRange, cookiePath = "") {
+export async function ytDlpHelper(path, url, isOversea, proxy, maxThreads, outputFilename, merge = false, graphics, timeRange, cookiePath = "") {
     return new Promise((resolve, reject) => {
         let command = "";
         // 构造 cookie 参数
         const cookieParam = constructCookiePath(url, cookiePath);
+        // 确保 outputFilename 不为空，提供一个默认值以防万一
+        const finalOutputFilename = outputFilename || "temp_download";
+
         if (url.includes("music")) {
             // 这里是 YouTube Music的处理逻辑
             // e.g yt-dlp -x --audio-format mp3 https://youtu.be/5wEtefq9VzM -o test.mp3
-            command = `yt-dlp -x --audio-format flac -f ba ${cookieParam} ${constructProxyParam(isOversea, proxy)} -P ${path} -o "temp.flac" ${url}`;
+            command = `yt-dlp -x --audio-format flac -f ba ${cookieParam} ${constructProxyParam(isOversea, proxy)} -P "${path}" -o "${finalOutputFilename}.flac" ${url}`;
         } else {
             // 正常情况下的处理逻辑
             const fParam = url.includes("youtu") ? `--download-sections "*${timeRange}" -f "bv${graphics}[ext=mp4]+ba[ext=m4a]" ` : "";
 
-            command = `yt-dlp -N ${maxThreads} ${fParam} --concurrent-fragments ${maxThreads} ${cookieParam} ${constructProxyParam(isOversea, proxy)} -P ${path} -o "temp.%(ext)s" ${url}`;
+            command = `yt-dlp -N ${maxThreads} ${fParam} --concurrent-fragments ${maxThreads} ${cookieParam} ${constructProxyParam(isOversea, proxy)} -P "${path}" -o "${finalOutputFilename}.%(ext)s" ${url}`;
         }
 
         logger.info(`[R插件][yt-dlp审计] ${command}`);