diff --git a/pkg/utils/files.go b/pkg/utils/files.go
index 2f9c436..1f780c4 100644
--- a/pkg/utils/files.go
+++ b/pkg/utils/files.go
@@ -7,6 +7,7 @@ import (
 	"io"
 	"net/http"
 	"os"
+	"strconv"
 	"strings"
 
 	"go.uber.org/zap"
@@ -50,3 +51,50 @@ func SaveUrlFileDisk(url string, path string, filename string) (fullPath string,
 	}
 	return
 }
+
+// GetRemoteFileSize 通过HTTP HEAD请求获取远程文件大小（不下载文件）
+func GetRemoteFileSize(url string) (size int64, err error) {
+	// 创建HEAD请求
+	req, err := http.NewRequest("HEAD", url, nil)
+	if err != nil {
+		zap.L().Error("GetRemoteFileSize create request err", zap.String("url", url), zap.Error(err))
+		err = errors.New(e.GetMsg(e.ERROR_DOWNLOAD_FILE))
+		return
+	}
+
+	// 发送请求
+	client := &http.Client{}
+	resp, err := client.Do(req)
+	if err != nil {
+		zap.L().Error("GetRemoteFileSize request err", zap.String("url", url), zap.Error(err))
+		err = errors.New(e.GetMsg(e.ERROR_DOWNLOAD_FILE))
+		return
+	}
+	defer resp.Body.Close()
+
+	// 检查HTTP状态码
+	if resp.StatusCode != http.StatusOK {
+		zap.L().Error("GetRemoteFileSize status code err", zap.String("url", url), zap.Int("status", resp.StatusCode))
+		err = errors.New(e.GetMsg(e.ERROR_DOWNLOAD_FILE))
+		return
+	}
+
+	// 获取Content-Length头部
+	contentLength := resp.Header.Get("Content-Length")
+	if contentLength == "" {
+		zap.L().Error("GetRemoteFileSize Content-Length header not found", zap.String("url", url))
+		err = errors.New("无法获取文件大小")
+		return
+	}
+
+	// 解析文件大小
+	size, err = strconv.ParseInt(contentLength, 10, 64)
+	size = size / 1024 / 1024
+	if err != nil {
+		zap.L().Error("GetRemoteFileSize parse size err", zap.String("url", url), zap.String("contentLength", contentLength), zap.Error(err))
+		err = errors.New("解析文件大小失败")
+		return
+	}
+
+	return
+}