diff --git a/internal/metrics/collector.go b/internal/metrics/collector.go
index c099946..e09dc24 100644
--- a/internal/metrics/collector.go
+++ b/internal/metrics/collector.go
@@ -323,6 +323,12 @@ func (c *Collector) GetStats() map[string]interface{} {
 
 func (c *Collector) SaveMetrics(stats map[string]interface{}) error {
 	lastSaveTime = time.Now()
+
+	// 如果指标存储服务已初始化，则调用它来保存指标
+	if metricsStorage != nil {
+		return metricsStorage.SaveMetrics()
+	}
+
 	return nil
 }
 
diff --git a/internal/metrics/init.go b/internal/metrics/init.go
new file mode 100644
index 0000000..17feb6b
--- /dev/null
+++ b/internal/metrics/init.go
@@ -0,0 +1,48 @@
+package metrics
+
+import (
+	"log"
+	"path/filepath"
+	"proxy-go/internal/config"
+	"time"
+)
+
+var (
+	metricsStorage *MetricsStorage
+)
+
+// InitMetricsStorage 初始化指标存储服务
+func InitMetricsStorage(cfg *config.Config) error {
+	// 确保收集器已初始化
+	if err := InitCollector(cfg); err != nil {
+		return err
+	}
+
+	// 创建指标存储服务
+	dataDir := filepath.Join("data", "metrics")
+	saveInterval := 5 * time.Minute // 默认5分钟保存一次
+
+	metricsStorage = NewMetricsStorage(GetCollector(), dataDir, saveInterval)
+
+	// 启动指标存储服务
+	if err := metricsStorage.Start(); err != nil {
+		log.Printf("[Metrics] 启动指标存储服务失败: %v", err)
+		return err
+	}
+
+	log.Printf("[Metrics] 指标存储服务已初始化")
+	return nil
+}
+
+// StopMetricsStorage 停止指标存储服务
+func StopMetricsStorage() {
+	if metricsStorage != nil {
+		metricsStorage.Stop()
+		log.Printf("[Metrics] 指标存储服务已停止")
+	}
+}
+
+// GetMetricsStorage 获取指标存储服务实例
+func GetMetricsStorage() *MetricsStorage {
+	return metricsStorage
+}
diff --git a/internal/metrics/persistence.go b/internal/metrics/persistence.go
new file mode 100644
index 0000000..fef224d
--- /dev/null
+++ b/internal/metrics/persistence.go
@@ -0,0 +1,306 @@
+package metrics
+
+import (
+	"encoding/json"
+	"fmt"
+	"log"
+	"os"
+	"path/filepath"
+	"proxy-go/internal/models"
+	"sync"
+	"sync/atomic"
+	"time"
+)
+
+// MetricsStorage 指标存储结构
+type MetricsStorage struct {
+	collector      *Collector
+	saveInterval   time.Duration
+	dataDir        string
+	stopChan       chan struct{}
+	wg             sync.WaitGroup
+	lastSaveTime   time.Time
+	mutex          sync.RWMutex
+	metricsFile    string
+	pathStatsFile  string
+	statusCodeFile string
+}
+
+// NewMetricsStorage 创建新的指标存储
+func NewMetricsStorage(collector *Collector, dataDir string, saveInterval time.Duration) *MetricsStorage {
+	if saveInterval < time.Minute {
+		saveInterval = time.Minute
+	}
+
+	return &MetricsStorage{
+		collector:      collector,
+		saveInterval:   saveInterval,
+		dataDir:        dataDir,
+		stopChan:       make(chan struct{}),
+		metricsFile:    filepath.Join(dataDir, "metrics.json"),
+		pathStatsFile:  filepath.Join(dataDir, "path_stats.json"),
+		statusCodeFile: filepath.Join(dataDir, "status_codes.json"),
+	}
+}
+
+// Start 启动定时保存任务
+func (ms *MetricsStorage) Start() error {
+	// 确保数据目录存在
+	if err := os.MkdirAll(ms.dataDir, 0755); err != nil {
+		return fmt.Errorf("创建数据目录失败: %v", err)
+	}
+
+	// 尝试加载现有数据
+	if err := ms.LoadMetrics(); err != nil {
+		log.Printf("[MetricsStorage] 加载指标数据失败: %v", err)
+		// 加载失败不影响启动
+	}
+
+	ms.wg.Add(1)
+	go ms.runSaveTask()
+	log.Printf("[MetricsStorage] 指标存储服务已启动，保存间隔: %v", ms.saveInterval)
+	return nil
+}
+
+// Stop 停止定时保存任务
+func (ms *MetricsStorage) Stop() {
+	close(ms.stopChan)
+	ms.wg.Wait()
+
+	// 在停止前保存一次数据
+	if err := ms.SaveMetrics(); err != nil {
+		log.Printf("[MetricsStorage] 停止时保存指标数据失败: %v", err)
+	}
+
+	log.Printf("[MetricsStorage] 指标存储服务已停止")
+}
+
+// runSaveTask 运行定时保存任务
+func (ms *MetricsStorage) runSaveTask() {
+	defer ms.wg.Done()
+
+	ticker := time.NewTicker(ms.saveInterval)
+	defer ticker.Stop()
+
+	for {
+		select {
+		case <-ticker.C:
+			if err := ms.SaveMetrics(); err != nil {
+				log.Printf("[MetricsStorage] 保存指标数据失败: %v", err)
+			}
+		case <-ms.stopChan:
+			return
+		}
+	}
+}
+
+// SaveMetrics 保存指标数据
+func (ms *MetricsStorage) SaveMetrics() error {
+	start := time.Now()
+	log.Printf("[MetricsStorage] 开始保存指标数据...")
+
+	// 获取当前指标数据
+	stats := ms.collector.GetStats()
+
+	// 保存基本指标
+	basicMetrics := map[string]interface{}{
+		"uptime":              stats["uptime"],
+		"total_bytes":         stats["total_bytes"],
+		"avg_response_time":   stats["avg_response_time"],
+		"requests_per_second": stats["requests_per_second"],
+		"bytes_per_second":    stats["bytes_per_second"],
+		"latency_stats":       stats["latency_stats"],
+		"bandwidth_history":   stats["bandwidth_history"],
+		"current_bandwidth":   stats["current_bandwidth"],
+		"save_time":           time.Now().Format(time.RFC3339),
+	}
+
+	if err := saveJSONToFile(ms.metricsFile, basicMetrics); err != nil {
+		return fmt.Errorf("保存基本指标失败: %v", err)
+	}
+
+	// 保存路径统计
+	if err := saveJSONToFile(ms.pathStatsFile, stats["top_paths"]); err != nil {
+		return fmt.Errorf("保存路径统计失败: %v", err)
+	}
+
+	// 保存状态码统计
+	if err := saveJSONToFile(ms.statusCodeFile, stats["status_code_stats"]); err != nil {
+		return fmt.Errorf("保存状态码统计失败: %v", err)
+	}
+
+	ms.mutex.Lock()
+	ms.lastSaveTime = time.Now()
+	ms.mutex.Unlock()
+
+	log.Printf("[MetricsStorage] 指标数据保存完成，耗时: %v", time.Since(start))
+	return nil
+}
+
+// LoadMetrics 加载指标数据
+func (ms *MetricsStorage) LoadMetrics() error {
+	start := time.Now()
+	log.Printf("[MetricsStorage] 开始加载指标数据...")
+
+	// 检查文件是否存在
+	if !fileExists(ms.metricsFile) || !fileExists(ms.pathStatsFile) || !fileExists(ms.statusCodeFile) {
+		return fmt.Errorf("指标数据文件不存在")
+	}
+
+	// 加载基本指标
+	var basicMetrics map[string]interface{}
+	if err := loadJSONFromFile(ms.metricsFile, &basicMetrics); err != nil {
+		return fmt.Errorf("加载基本指标失败: %v", err)
+	}
+
+	// 加载路径统计
+	var pathStats []map[string]interface{}
+	if err := loadJSONFromFile(ms.pathStatsFile, &pathStats); err != nil {
+		return fmt.Errorf("加载路径统计失败: %v", err)
+	}
+
+	// 加载状态码统计
+	var statusCodeStats map[string]interface{}
+	if err := loadJSONFromFile(ms.statusCodeFile, &statusCodeStats); err != nil {
+		return fmt.Errorf("加载状态码统计失败: %v", err)
+	}
+
+	// 将加载的数据应用到收集器
+	// 1. 应用总字节数
+	if totalBytes, ok := basicMetrics["total_bytes"].(float64); ok {
+		atomic.StoreInt64(&ms.collector.totalBytes, int64(totalBytes))
+	}
+
+	// 2. 应用路径统计
+	for _, pathStat := range pathStats {
+		path, ok := pathStat["path"].(string)
+		if !ok {
+			continue
+		}
+
+		requestCount, _ := pathStat["request_count"].(float64)
+		errorCount, _ := pathStat["error_count"].(float64)
+		bytesTransferred, _ := pathStat["bytes_transferred"].(float64)
+
+		// 创建或更新路径统计
+		var pathMetrics *models.PathMetrics
+		if existingMetrics, ok := ms.collector.pathStats.Load(path); ok {
+			pathMetrics = existingMetrics.(*models.PathMetrics)
+		} else {
+			pathMetrics = &models.PathMetrics{Path: path}
+			ms.collector.pathStats.Store(path, pathMetrics)
+		}
+
+		// 设置统计值
+		pathMetrics.RequestCount.Store(int64(requestCount))
+		pathMetrics.ErrorCount.Store(int64(errorCount))
+		pathMetrics.BytesTransferred.Store(int64(bytesTransferred))
+	}
+
+	// 3. 应用状态码统计
+	for statusCode, count := range statusCodeStats {
+		countValue, ok := count.(float64)
+		if !ok {
+			continue
+		}
+
+		// 创建或更新状态码统计
+		if counter, ok := ms.collector.statusCodeStats.Load(statusCode); ok {
+			atomic.StoreInt64(counter.(*int64), int64(countValue))
+		} else {
+			counter := new(int64)
+			*counter = int64(countValue)
+			ms.collector.statusCodeStats.Store(statusCode, counter)
+		}
+	}
+
+	// 4. 应用延迟分布桶（如果有）
+	if latencyStats, ok := basicMetrics["latency_stats"].(map[string]interface{}); ok {
+		if distribution, ok := latencyStats["distribution"].(map[string]interface{}); ok {
+			for bucket, count := range distribution {
+				countValue, ok := count.(float64)
+				if !ok {
+					continue
+				}
+
+				if bucketCounter, ok := ms.collector.latencyBuckets.Load(bucket); ok {
+					atomic.StoreInt64(bucketCounter.(*int64), int64(countValue))
+				}
+			}
+		}
+	}
+
+	// 5. 应用带宽历史（如果有）
+	if bandwidthHistory, ok := basicMetrics["bandwidth_history"].(map[string]interface{}); ok {
+		ms.collector.bandwidthStats.Lock()
+		ms.collector.bandwidthStats.history = make(map[string]int64)
+		for timeKey, bandwidth := range bandwidthHistory {
+			bandwidthValue, ok := bandwidth.(string)
+			if !ok {
+				continue
+			}
+
+			// 解析带宽值（假设格式为 "X.XX MB/s"）
+			var bytesValue float64
+			fmt.Sscanf(bandwidthValue, "%f", &bytesValue)
+			ms.collector.bandwidthStats.history[timeKey] = int64(bytesValue)
+		}
+		ms.collector.bandwidthStats.Unlock()
+	}
+
+	ms.mutex.Lock()
+	if saveTime, ok := basicMetrics["save_time"].(string); ok {
+		if t, err := time.Parse(time.RFC3339, saveTime); err == nil {
+			ms.lastSaveTime = t
+		}
+	}
+	ms.mutex.Unlock()
+
+	log.Printf("[MetricsStorage] 指标数据加载完成，耗时: %v", time.Since(start))
+	return nil
+}
+
+// GetLastSaveTime 获取最后保存时间
+func (ms *MetricsStorage) GetLastSaveTime() time.Time {
+	ms.mutex.RLock()
+	defer ms.mutex.RUnlock()
+	return ms.lastSaveTime
+}
+
+// 辅助函数：保存JSON到文件
+func saveJSONToFile(filename string, data interface{}) error {
+	// 创建临时文件
+	tempFile := filename + ".tmp"
+
+	// 将数据编码为JSON
+	jsonData, err := json.MarshalIndent(data, "", "  ")
+	if err != nil {
+		return err
+	}
+
+	// 写入临时文件
+	if err := os.WriteFile(tempFile, jsonData, 0644); err != nil {
+		return err
+	}
+
+	// 重命名临时文件为目标文件（原子操作）
+	return os.Rename(tempFile, filename)
+}
+
+// 辅助函数：从文件加载JSON
+func loadJSONFromFile(filename string, data interface{}) error {
+	// 读取文件内容
+	jsonData, err := os.ReadFile(filename)
+	if err != nil {
+		return err
+	}
+
+	// 解码JSON数据
+	return json.Unmarshal(jsonData, data)
+}
+
+// 辅助函数：检查文件是否存在
+func fileExists(filename string) bool {
+	_, err := os.Stat(filename)
+	return err == nil
+}
diff --git a/main.go b/main.go
index 17f6dbd..65adca0 100644
--- a/main.go
+++ b/main.go
@@ -31,6 +31,12 @@ func main() {
 		log.Fatal("Error initializing metrics collector:", err)
 	}
 
+	// 初始化指标存储服务
+	if err := metrics.InitMetricsStorage(cfg); err != nil {
+		log.Printf("Warning: Failed to initialize metrics storage: %v", err)
+		// 不致命，继续运行
+	}
+
 	// 创建压缩管理器
 	compManager := compression.NewManager(compression.Config{
 		Gzip:   compression.CompressorConfig(cfg.Compression.Gzip),
@@ -169,6 +175,10 @@ func main() {
 		signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)
 		<-sigChan
 		log.Println("Shutting down server...")
+
+		// 停止指标存储服务
+		metrics.StopMetricsStorage()
+
 		if err := server.Close(); err != nil {
 			log.Printf("Error during server shutdown: %v\n", err)
 		}