diff --git a/internal/metrics/stat.go b/internal/metrics/stat.go
index 698e958..759872d 100644
--- a/internal/metrics/stat.go
+++ b/internal/metrics/stat.go
@@ -3,6 +3,7 @@
 package metrics
 
 import (
+	"encoding/json"
 	"github.com/cespare/xxhash"
 	"strconv"
 )
@@ -13,10 +14,9 @@ type Stat struct {
 	Hash     string
 	Value    int64
 	Time     string
-
-	keysData []byte
 }
 
-func (this *Stat) Sum(version int32, itemId int64) {
-	this.Hash = strconv.FormatUint(xxhash.Sum64String(strconv.FormatInt(this.ServerId, 10)+"@"+string(this.keysData)+"@"+this.Time+"@"+strconv.Itoa(int(version))+"@"+strconv.FormatInt(itemId, 10)), 10)
+func SumStat(serverId int64, keys []string, time string, version int32, itemId int64) string {
+	keysData, _ := json.Marshal(keys)
+	return strconv.FormatUint(xxhash.Sum64String(strconv.FormatInt(serverId, 10)+"@"+string(keysData)+"@"+time+"@"+strconv.Itoa(int(version))+"@"+strconv.FormatInt(itemId, 10)), 10)
 }
diff --git a/internal/metrics/task.go b/internal/metrics/task.go
index 525179e..57e5202 100644
--- a/internal/metrics/task.go
+++ b/internal/metrics/task.go
@@ -35,7 +35,6 @@ type Task struct {
 
 	db            *sql.DB
 	statTableName string
-	statsChan     chan *Stat
 	isStopped     bool
 
 	cleanTicker  *utils.Ticker
@@ -52,15 +51,19 @@ type Task struct {
 	serverIdMap       map[int64]bool  // 所有的服务Ids
 	timeMap           map[string]bool // time => bool
 	serverIdMapLocker sync.Mutex
+
+	statsMap    map[string]*Stat
+	statsLocker sync.Mutex
+	statsTicker *utils.Ticker
 }
 
 // NewTask 获取新任务
 func NewTask(item *serverconfigs.MetricItemConfig) *Task {
 	return &Task{
 		item:        item,
-		statsChan:   make(chan *Stat, 40960),
 		serverIdMap: map[int64]bool{},
 		timeMap:     map[string]bool{},
+		statsMap:    map[string]*Stat{},
 	}
 }
 
@@ -156,14 +159,19 @@ ON "` + this.statTableName + `" (
 // Start 启动任务
 func (this *Task) Start() error {
 	// 读取数据
+	this.statsTicker = utils.NewTicker(1 * time.Minute)
 	go func() {
-		for stat := range this.statsChan {
-			if stat == nil {
-				return
-			}
-			err := this.InsertStat(stat)
-			if err != nil {
-				remotelogs.Error("METRIC", "insert stat failed: "+err.Error())
+		for this.statsTicker.Next() {
+			this.statsLocker.Lock()
+			var statsMap = this.statsMap
+			this.statsMap = map[string]*Stat{}
+			this.statsLocker.Unlock()
+
+			for _, stat := range statsMap {
+				err := this.InsertStat(stat)
+				if err != nil {
+					remotelogs.Error("METRIC", "insert stat failed: "+err.Error())
+				}
 			}
 		}
 	}()
@@ -210,18 +218,22 @@ func (this *Task) Add(obj MetricInterface) {
 		return
 	}
 
-	var stat = &Stat{
-		ServerId: obj.MetricServerId(),
-		Keys:     keys,
-		Value:    v,
-		Time:     this.item.CurrentTime(),
-	}
-
-	select {
-	case this.statsChan <- stat:
-	default:
-		// 丢弃
+	var hash = SumStat(obj.MetricServerId(), keys, this.item.CurrentTime(), this.item.Version, this.item.Id)
+	this.statsLocker.Lock()
+	oldStat, ok := this.statsMap[hash]
+	if ok {
+		oldStat.Value += v
+		oldStat.Hash = hash
+	} else {
+		this.statsMap[hash] = &Stat{
+			ServerId: obj.MetricServerId(),
+			Keys:     keys,
+			Value:    v,
+			Time:     this.item.CurrentTime(),
+			Hash:     hash,
+		}
 	}
+	this.statsLocker.Unlock()
 }
 
 // Stop 停止任务
@@ -234,6 +246,9 @@ func (this *Task) Stop() error {
 	if this.uploadTicker != nil {
 		this.uploadTicker.Stop()
 	}
+	if this.statsTicker != nil {
+		this.statsTicker.Stop()
+	}
 
 	_ = this.insertStatStmt.Close()
 	_ = this.deleteByVersionStmt.Close()
@@ -241,14 +256,6 @@ func (this *Task) Stop() error {
 	_ = this.selectTopStmt.Close()
 	_ = this.sumStmt.Close()
 
-	if this.statsChan != nil {
-		go func() {
-			// 延时关闭，防止关闭时写入
-			time.Sleep(5 * time.Second)
-			close(this.statsChan)
-		}()
-	}
-
 	if this.db != nil {
 		_ = this.db.Close()
 	}
@@ -274,10 +281,8 @@ func (this *Task) InsertStat(stat *Stat) error {
 	if err != nil {
 		return err
 	}
-	stat.keysData = keyData
-	stat.Sum(this.item.Version, this.item.Id)
 
-	_, err = this.insertStatStmt.Exec(stat.ServerId, stat.Hash, stat.keysData, stat.Value, stat.Time, this.item.Version, stat.Value)
+	_, err = this.insertStatStmt.Exec(stat.ServerId, stat.Hash, keyData, stat.Value, stat.Time, this.item.Version, stat.Value)
 	if err != nil {
 		return err
 	}