diff --git a/common/config/config.go b/common/config/config.go
index 9c3553690..10440e5f2 100644
--- a/common/config/config.go
+++ b/common/config/config.go
@@ -250,6 +250,17 @@ func GetTrackDestroyedContractHeight() uint32 {
 	}
 }
 
+func GetUserFeeSplitHeight() uint32 {
+	switch DefConfig.P2PNode.NetworkId {
+	case NETWORK_ID_MAIN_NET:
+		return constants.USER_FEE_SPLIT_OVERFLOW_MAINNET
+	case NETWORK_ID_POLARIS_NET:
+		return constants.USER_FEE_SPLIT_OVERFLOW_POLARIS
+	default:
+		return 0
+	}
+}
+
 func GetAddDecimalsHeight() uint32 {
 	switch DefConfig.P2PNode.NetworkId {
 	case NETWORK_ID_MAIN_NET:
@@ -447,9 +458,7 @@ func NewGenesisConfig() *GenesisConfig {
 	}
 }
 
-//
 // VBFT genesis config, from local config file
-//
 type VBFTConfig struct {
 	N                    uint32               `json:"n"` // network size
 	C                    uint32               `json:"c"` // consensus quorum
diff --git a/common/constants/constants.go b/common/constants/constants.go
index 90c73c354..52721a34e 100644
--- a/common/constants/constants.go
+++ b/common/constants/constants.go
@@ -108,13 +108,16 @@ const BLOCKHEIGHT_ONTFS_POLARIS = 12250000
 
 const BLOCKHEIGHT_CC_POLARIS = 13130000
 
-//new node cost height
+// new node cost height
 const BLOCKHEIGHT_NEW_PEER_COST_MAINNET = 9400000
 const BLOCKHEIGHT_NEW_PEER_COST_POLARIS = 13400000
 
 const BLOCKHEIGHT_TRACK_DESTROYED_CONTRACT_MAINNET = 11700000
 const BLOCKHEIGHT_TRACK_DESTROYED_CONTRACT_POLARIS = 14100000
 
+const USER_FEE_SPLIT_OVERFLOW_MAINNET = 16490000
+const USER_FEE_SPLIT_OVERFLOW_POLARIS = 17550000
+
 var (
 	BLOCKHEIGHT_ADD_DECIMALS_MAINNET = uint32(13920000)
 	BLOCKHEIGHT_ADD_DECIMALS_POLARIS = uint32(0)
diff --git a/smartcontract/service/native/governance/method.go b/smartcontract/service/native/governance/method.go
index aa4f82c56..e4616186e 100644
--- a/smartcontract/service/native/governance/method.go
+++ b/smartcontract/service/native/governance/method.go
@@ -27,6 +27,7 @@ import (
 	"github.com/ontio/ontology/common"
 	"github.com/ontio/ontology/common/config"
 	"github.com/ontio/ontology/common/constants"
+	"github.com/ontio/ontology/common/log"
 	cstates "github.com/ontio/ontology/core/states"
 	"github.com/ontio/ontology/smartcontract/service/native"
 	"github.com/ontio/ontology/smartcontract/service/native/utils"
@@ -1058,7 +1059,7 @@ func executeSplit2(native *native.NativeService, contract common.Address, view u
 	return splitSum, nil
 }
 
-func executeAddressSplit(native *native.NativeService, contract common.Address, authorizeInfo *AuthorizeInfo, preIfConsensus, ifConsensus bool, totalPos uint64, totalAmount uint64, peerAddress common.Address) (uint64, error) {
+func executeAddressSplit(native *native.NativeService, contract common.Address, authorizeInfo *AuthorizeInfo, preIfConsensus, ifConsensus bool, totalPos uint64, totalAmount uint64, peerAddress common.Address, peerPubkey string) (uint64, error) {
 	var validatePos uint64
 	if ifConsensus || preIfConsensus {
 		validatePos = authorizeInfo.ConsensusPos + authorizeInfo.WithdrawConsensusPos
@@ -1070,6 +1071,16 @@ func executeAddressSplit(native *native.NativeService, contract common.Address,
 		return 0, nil
 	}
 	amount := validatePos * totalAmount / totalPos
+	amountReal := new(big.Int).Div(
+		new(big.Int).Mul(new(big.Int).SetUint64(validatePos), new(big.Int).SetUint64(totalAmount)),
+		new(big.Int).SetUint64(totalPos)).Uint64()
+	if native.Height > config.GetUserFeeSplitHeight() {
+		amount = amountReal
+	}
+	if amount != amountReal {
+		log.Errorf("address split overflow: preexec:%v, node: %s, pubkey: %s, user:%s, amount: %d, real: %d, diff: %d",
+			native.PreExec, peerAddress.ToBase58(), peerPubkey, authorizeInfo.Address.ToBase58(), amount, amountReal, amountReal-amount)
+	}
 	splitFeeAddress, err := getSplitFeeAddress(native, contract, authorizeInfo.Address)
 	if err != nil {
 		return 0, fmt.Errorf("getSplitFeeAddress, getSplitFeeAddress error: %v", err)
@@ -1438,7 +1449,7 @@ func splitNodeFee(native *native.NativeService, contract common.Address, peerPub
 		}
 
 		//fee split
-		splitAmount, err := executeAddressSplit(native, contract, &authorizeInfo, preIfConsensus, ifConsensus, totalPos, amount, peerAddress)
+		splitAmount, err := executeAddressSplit(native, contract, &authorizeInfo, preIfConsensus, ifConsensus, totalPos, amount, peerAddress, peerPubkey)
 		if err != nil {
 			return fmt.Errorf("excuteAddressSplit, excuteAddressSplit error: %v", err)
 		}