diff --git a/option.go b/option.go
index 5135297..9882233 100644
--- a/option.go
+++ b/option.go
@@ -9,7 +9,7 @@ import (
 type Options struct {
 	logger        logger.Logger
 	location      *time.Location
-	timeout       time.Duration
+	timeout       time.Duration // 任务最长执行时间
 	usePriority   bool
 	priorityVal   int64
 	batchSize     int
@@ -20,7 +20,7 @@ func defaultOptions() Options {
 	return Options{
 		logger:        logger.NewLogger(),
 		location:      time.Local,
-		timeout:       time.Hour,
+		timeout:       time.Hour, //
 		usePriority:   false,
 		priorityVal:   0,
 		batchSize:     100,
diff --git a/single.go b/single.go
index 646bcc0..5cce885 100644
--- a/single.go
+++ b/single.go
@@ -34,6 +34,7 @@ type Single struct {
 	timerIndex  int64
 	stopChan    chan struct{}
 	hasRun      sync.Map
+	timeout     time.Duration
 }
 
 // 定时器类
@@ -50,6 +51,7 @@ func InitSingle(ctx context.Context, opts ...Option) *Single {
 		location: op.location,
 		nextTime: time.Now(),
 		stopChan: make(chan struct{}),
+		timeout:  op.timeout,
 	}
 
 	sin.wg.Add(1)
@@ -393,6 +395,12 @@ func (l *Single) iterator(ctx context.Context) {
 
 // 执行任务
 func (s *Single) executeTask(ctx context.Context, timer timerStr, originTime time.Time) {
+	// 创建带追踪ID的上下文
+	traceCtx := context.WithValue(ctx, "trace_id", uuid.NewV4().String())
+	s.logger.Infof(traceCtx, "timer: 开始执行任务 %s", timer.TaskId)
+	traceCtx, cancel := context.WithTimeout(traceCtx, s.timeout) // 设置执行超时
+	defer cancel()
+
 	select {
 	case timer.CanRunning <- struct{}{}:
 		defer func() {
@@ -405,15 +413,10 @@ func (s *Single) executeTask(ctx context.Context, timer timerStr, originTime tim
 		// 检查任务是否已执行
 		taskKey := fmt.Sprintf("%s:%d", timer.TaskId, originTime.UnixNano())
 		if _, loaded := s.hasRun.LoadOrStore(taskKey, time.Now()); loaded {
-			s.logger.Errorf(ctx, "timer: 任务已执行，跳过本次执行 %s", timer.TaskId)
+			s.logger.Errorf(traceCtx, "timer: 任务已执行，跳过本次执行 %s", timer.TaskId)
 			return
 		}
 
-		// 创建带追踪ID的上下文
-		traceCtx := context.WithValue(ctx, "trace_id", uuid.NewV4().String())
-		traceCtx, cancel := context.WithTimeout(traceCtx, 30*time.Second) // 设置执行超时
-		defer cancel()
-
 		// 执行回调
 		if err := s.doTask(traceCtx, timer, originTime); err != nil {
 			s.logger.Errorf(traceCtx, "timer: 任务执行失败: %s", err.Error())
@@ -421,6 +424,7 @@ func (s *Single) executeTask(ctx context.Context, timer timerStr, originTime tim
 
 	default:
 		// 任务正在执行中，跳过本次
+		s.logger.Infof(traceCtx, "timer: 任务正在执行中，跳过本次 %s", timer.TaskId)
 	}
 }