diff --git a/worldsrv/welfmgr.go b/worldsrv/welfmgr.go
index 9ea3150..82f42a7 100644
--- a/worldsrv/welfmgr.go
+++ b/worldsrv/welfmgr.go
@@ -1836,9 +1836,11 @@ func (this *WelfareMgr) DiamondBankGetInfo(p *Player) {
 	}
 
 	BankMaxCoin := infoData.MaxDiamond
+
 	if p.WelfData != nil && p.WelfData.DiamondBank != nil {
+		bankDiamond := math.Floor(p.WelfData.DiamondBank.BankDiamond*10000) / 10000
 		pack.OpRetCode = welfare.OpResultCode_OPRC_Sucess
-		pack.BankDiamond = p.WelfData.DiamondBank.BankDiamond
+		pack.BankDiamond = bankDiamond
 		pack.TakeTimes = p.WelfData.DiamondBank.DayBuyTimes
 		pack.BankMaxCoin = int64(BankMaxCoin)
 		pack.DayBuyMaxCnt = fGetPropValue("DayBuyMaxCntDiamond")