diff --git a/server/light_backtask/service/vip.go b/server/light_backtask/service/vip.go
index dae02af8..eac03010 100644
--- a/server/light_backtask/service/vip.go
+++ b/server/light_backtask/service/vip.go
@@ -95,12 +95,22 @@ func (this *vip) RecalcEsCecConvert(accountAddress string) error {
 	if err != nil {
 		return err
 	}
+	var lastWithdraw *vesterDepositWithdrawPo
+	allDeposits := []*vesterDepositWithdrawPo{}
 	for ds.Next() {
-		eventName := ds.GetByName("event_name")
-		if eventName == constant.VESTER_DEPOSIT_EVENT_NAME {
-
-		} else if eventName == constant.VESTER_WITHDRAW_EVENT_NAME {
-
+		p := new(vesterDepositWithdrawPo)
+		p.eventName = ds.GetByName("event_name")
+		p.chainTimestamp = q5.ToInt32(ds.GetByName("chain_timestamp"))
+		p.accountAddress = ds.GetByName("account_address")
+		p.depositAmount = ds.GetByName("deposit_amount")
+		p.withdrawClamiedAmount = ds.GetByName("withdraw_clamied_amount")
+		p.withdrawBalance = ds.GetByName("withdraw_balance")
+		if p.eventName == constant.VESTER_DEPOSIT_EVENT_NAME {
+			q5.AppendSlice(&allDeposits, p)
+		} else if p.eventName == constant.VESTER_WITHDRAW_EVENT_NAME {
+			if lastWithdraw == nil || lastWithdraw.chainTimestamp < p.chainTimestamp {
+				lastWithdraw = p
+			}
 		}
 	}
 	return nil