diff --git a/server/jccommon/constant.go b/server/jccommon/constant.go
index 9b869296..73c37d05 100644
--- a/server/jccommon/constant.go
+++ b/server/jccommon/constant.go
@@ -40,6 +40,7 @@ const (
 	CONTRACT_NAME_GameItemMall = "GameItemMall"
 	CONTRACT_NAME_StakedEsCecRouter = "stakedEsCecRouter"
 	CONTRACT_NAME_EsCec = "esCEC"
+	CONTRACT_NAME_Vester = "vester"
 )
 
 const (
diff --git a/server/light_backtask/task/vester.go b/server/light_backtask/task/vester.go
new file mode 100644
index 00000000..396e37b7
--- /dev/null
+++ b/server/light_backtask/task/vester.go
@@ -0,0 +1,70 @@
+package task
+
+import (
+	"q5"
+	"f5"
+	"main/mt"
+	"main/constant"
+	"jccommon"
+	"fmt"
+)
+
+/*
+Deposit amount his_amount 衰减,最后的存覆盖之前的
+Withdraw 所有
+
+按时间排序处理事件的先后顺序
+
+通过Vester.sol的remainingEsToken方法获取, 如果要本地计算的话, 那就取每次Deposit事件的时间和amount, 加上先前的转换的余额, 再按total * (now - deposit_time) / (365 * 24 * 2600)
+*/
+type vesterDeposit struct {
+
+}
+
+func (this *vesterDeposit) init() {
+	mt.Table.Contract.Traverse(func (ele *mt.Contract) bool {
+		if ele.GetName() == jccommon.CONTRACT_NAME_Vester {
+			go this.process(ele.GetNetId(), ele.GetAddress())
+		}
+		return true
+	})
+}
+
+func (this *vesterDeposit) unInit() {
+}
+
+func (this *vesterDeposit) process(netId int32, contractAddress string) {
+	key := fmt.Sprintf("vesterDeposit.lastIdx.%d.%s", netId, contractAddress)
+	if dbLastIdxStr, err := jccommon.GetDbParam(constant.BCEVENT_DB, key); err == nil {
+		f5.GetGoStyleDb().IncrementLoad(
+			constant.BCEVENT_DB,
+			"vesterDeposit." + q5.ToString(netId) + "." + contractAddress,
+			"t_blockchain_event",
+			q5.ToInt64(dbLastIdxStr),
+			func (lastIdx int64, maxIdx int64) (string, []string) {
+				sql := fmt.Sprintf(`
+SELECT * FROM t_blockchain_event
+WHERE idx > %d AND idx <= %d AND net_id = %d AND contract_address = ? AND event_name IN (?, ?)
+ORDER BY idx LIMIT 1000
+`,
+					lastIdx,
+					maxIdx,
+					netId)
+				params := []string{
+					contractAddress,
+					"Deposit",
+				}
+				return sql, params
+			},
+			func (newLastIdx int64) {
+				jccommon.SaveDbParam(constant.BCEVENT_DB, key, q5.ToString(newLastIdx))
+			},
+			this.saveToDb)
+	} else {
+		panic(fmt.Sprintf("vesterDeposit getDBParam error %s", err))
+	}
+}
+
+func (this* vesterDeposit) saveToDb(ds *f5.DataSet) bool {
+	return true
+}
diff --git a/server/light_backtask/task/vester_claim.go b/server/light_backtask/task/vester_claim.go
deleted file mode 100644
index da016410..00000000
--- a/server/light_backtask/task/vester_claim.go
+++ /dev/null
@@ -1,22 +0,0 @@
-package task
-
-import (
-	"main/mt"
-)
-
-type vesterClaim struct {
-
-}
-
-func (this *vesterClaim) init() {
-	mt.Table.Contract.Traverse(func (ele *mt.Contract) bool {
-		/*
-		if ele.GetName() == jccommon.CONTRACT_NAME_StakedEsCecRouter {
-			go this.process(ele.GetNetId(), ele.GetAddress())
-		}*/
-		return true
-	})
-}
-
-func (this *vesterClaim) unInit() {
-}
diff --git a/server/light_backtask/task/vester_deposit.go b/server/light_backtask/task/vester_deposit.go
deleted file mode 100644
index a9f49ec3..00000000
--- a/server/light_backtask/task/vester_deposit.go
+++ /dev/null
@@ -1,22 +0,0 @@
-package task
-
-import (
-	"main/mt"
-)
-
-type vesterDeposit struct {
-
-}
-
-func (this *vesterDeposit) init() {
-	mt.Table.Contract.Traverse(func (ele *mt.Contract) bool {
-		/*
-		if ele.GetName() == jccommon.CONTRACT_NAME_StakedEsCecRouter {
-			go this.process(ele.GetNetId(), ele.GetAddress())
-		}*/
-		return true
-	})
-}
-
-func (this *vesterDeposit) unInit() {
-}
diff --git a/server/light_backtask/task/vester_withdraw.go b/server/light_backtask/task/vester_withdraw.go
deleted file mode 100644
index 81587a25..00000000
--- a/server/light_backtask/task/vester_withdraw.go
+++ /dev/null
@@ -1,22 +0,0 @@
-package task
-
-import (
-	"main/mt"
-)
-
-type vesterWithdraw struct {
-
-}
-
-func (this *vesterWithdraw) init() {
-	mt.Table.Contract.Traverse(func (ele *mt.Contract) bool {
-		/*
-		if ele.GetName() == jccommon.CONTRACT_NAME_StakedEsCecRouter {
-			go this.process(ele.GetNetId(), ele.GetAddress())
-		}*/
-		return true
-	})
-}
-
-func (this *vesterWithdraw) unInit() {
-}