diff --git a/core/task.go b/core/task.go
index 1d997fc..0dd908f 100644
--- a/core/task.go
+++ b/core/task.go
@@ -36,7 +36,7 @@ func HandleTask(ctx context.Context, device config.DeviceMapping, task dto.Task)
 		log.Printf("获取文件列表失败, DeviceNo: %s, 错误: %v\n", device.DeviceNo, err)
 		return nil, err
 	}
-	files := util.FilterAndSortFiles(fileList, task.StartTime, task.EndTime)
+	files := util.FilterAndSortFiles(subCtx, fileList, task.StartTime, task.EndTime)
 	if len(files) == 0 {
 		span.SetStatus(codes.Error, "没有找到文件")
 		return nil, fmt.Errorf("没有找到文件")
diff --git a/util/file_filter.go b/util/file_filter.go
index 9c8b76d..e623bb6 100644
--- a/util/file_filter.go
+++ b/util/file_filter.go
@@ -2,11 +2,16 @@ package util
 
 import (
 	"ZhenTuLocalPassiveAdapter/dto"
+	"context"
+	"go.opentelemetry.io/otel/attribute"
 	"sort"
 	"time"
 )
 
-func FilterAndSortFiles(fileList []dto.File, beginDt, endDt time.Time) []dto.File {
+func FilterAndSortFiles(ctx context.Context, fileList []dto.File, beginDt, endDt time.Time) []dto.File {
+	_, span := tracer.Start(ctx, "FilterAndSortFiles")
+	defer span.End()
+	span.SetAttributes(attribute.Int("files.count", len(fileList)))
 	var filteredFiles []dto.File
 
 	for _, file := range fileList {
@@ -37,6 +42,6 @@ func FilterAndSortFiles(fileList []dto.File, beginDt, endDt time.Time) []dto.Fil
 	sort.Slice(filteredFiles, func(i, j int) bool {
 		return filteredFiles[i].StartTime.Unix() <= filteredFiles[j].StartTime.Unix()
 	})
-
+	span.SetAttributes(attribute.String("files.filtered", ToJson(filteredFiles)))
 	return filteredFiles
 }