diff --git a/server/backtask/task/refresh_meta.go b/server/backtask/task/refresh_meta.go
new file mode 100644
index 00000000..88bd6871
--- /dev/null
+++ b/server/backtask/task/refresh_meta.go
@@ -0,0 +1,94 @@
+package task
+
+import (
+	"q5"
+	"f5"
+	"fmt"
+	"jccommon"
+	"main/constant"
+	"main/service"
+	"math/rand"
+)
+
+type refreshMeta struct {
+
+}
+
+func (this* refreshMeta) init() {
+	go this.process()
+}
+
+func (this* refreshMeta) unInit() {
+}
+
+func (this* refreshMeta) process() {
+	f5.GetGoStyleDb().LoopLoad(
+		constant.BCNFT_DB,
+		"refreshMeta",
+		"t_order",
+		func () int64 {
+			return 60 + q5.ToInt64(rand.Intn(3))
+		},
+		func (lastIdx int64) string {
+			sql := fmt.Sprintf(`
+SELECT * FROM t_order WHERE idx > %d AND status = ? LIMIT 100`,
+				lastIdx,
+			)
+			return sql
+		},
+		[]string{
+			jccommon.ORDER_STATUS_ACTIVE,
+		},
+		func () int64 {
+			return 3
+		},
+		func () int64 {
+			return 60 + q5.ToInt64(rand.Intn(3))
+		},
+		this.repairPrice)
+}
+
+func (this* refreshMeta) repairPrice(ds *f5.DataSet) bool {
+	if service.BcCurrency.GetLastRefreshOkTime() + 3600 * 2 < f5.GetApp().GetRealSeconds() {
+		return false
+	}
+	dbIdx := ds.GetByName("idx")
+	eventId := ds.GetByName("event_id")
+	srcPriceAmount := ds.GetByName("src_price_amount")
+	srcPriceContractAddress := ds.GetByName("src_price_contract_address")
+	srcPriceItemType := ds.GetByName("src_price_item_type")
+	if srcPriceAmount == "" {
+		p := new(jccommon.OrderUpdatedEvent)
+		err := q5.DecodeJson(ds.GetByName("event_data"), &p)
+		if err != nil {
+			return false
+		}
+		srcPriceAmount = p.Data.Buy[0].Amount
+		srcPriceContractAddress = p.Data.Buy[0].ContractAddress
+		srcPriceItemType = p.Data.Buy[0].ItemType
+	}
+	srcPriceExchangeRate, price := service.BcCurrency.ExchangeUSD(
+		srcPriceAmount, srcPriceItemType, srcPriceContractAddress)
+	updateFields := [][]string{
+		{"src_price_amount", srcPriceAmount},
+		{"src_price_contract_address", srcPriceContractAddress},
+		{"src_price_item_type", srcPriceItemType},
+		{"price", price},
+		{"price_len", q5.ToString(len(price))},
+		{"src_price_exchange_rate", q5.ToString(srcPriceExchangeRate)},
+	}
+	f5.GetGoStyleDb().Update(
+		constant.BCNFT_DB,
+		"t_order",
+		[][]string{
+			{"idx", q5.ToString(dbIdx)},
+			{"event_id", eventId},
+		},
+		updateFields,
+		func (err error, lastInsertId int64, rowsAffected int64) {
+			if err != nil {
+				return
+			}
+		})
+	return true
+}
diff --git a/server/backtask/task/taskmgr.go b/server/backtask/task/taskmgr.go
index 2ce8776a..2902e908 100644
--- a/server/backtask/task/taskmgr.go
+++ b/server/backtask/task/taskmgr.go
@@ -16,6 +16,7 @@ type taskMgr struct {
 	openGoldLock sync.Mutex
 	sysMail
 	repairOrder
+	refreshMeta
 }
 
 func (this *taskMgr) Init() {
@@ -27,9 +28,11 @@ func (this *taskMgr) Init() {
 	this.repairNft.init()
 	this.sysMail.init()
 	this.repairOrder.init()
+	this.refreshMeta.init()
 }
 
 func (this *taskMgr) UnInit() {
+	this.refreshMeta.unInit()
 	this.repairOrder.unInit()
 	this.sysMail.unInit()
 	this.repairNft.unInit()