diff --git a/transfer/transfer_manager.go b/transfer/transfer_manager.go
index 7b705f91e31557d49a13138c6e21c99c94f05ba7..3ff6c289fd7b87e6c825598fd05f9047f7bf897a 100644
--- a/transfer/transfer_manager.go
+++ b/transfer/transfer_manager.go
@@ -1,7 +1,8 @@
 package transfer
 
 import (
-	"chainmaker.org/chainmaker/pb-go/v2/vm"
+	"chainmaker.org/chainmaker/pb-go/v2/syscontract"
+	vmPb "chainmaker.org/chainmaker/pb-go/v2/vm"
 	"chainmaker.org/chainmaker/protocol/v2"
 	"chainmaker.org/chainmaker/vm-native/v2/common"
 	"encoding/json"
@@ -9,10 +10,25 @@ import (
 	"strconv"
 )
 
-const contractName = "transfer"
+var contractName = syscontract.Pallet_Transfer.String()
+
 const empty = ""
 
-// AccountManagerRuntime comment at next version
+const (
+	Method_INIT     = "init"
+	Method_TRANSFER = "transfer"
+)
+const (
+	InitParams_BALANCE    = "balance"
+	InitParams_STARTINDEX = "startIndex"
+	InitParams_ENDINDEX   = "endIndex"
+)
+const (
+	TransferParams_FROM  = "f"
+	TransferParams_TO    = "t"
+	TransferParams_Trans = "b"
+)
+
 type TransferManagerRuntime struct {
 	log protocol.Logger
 }
@@ -54,9 +70,9 @@ func registerTransferContractMethods(log protocol.Logger) map[string]common.Cont
 	methodMap := make(map[string]common.ContractFunc, 64)
 	gasAccountRuntime := &TransferManagerRuntime{log: log}
 
-	methodMap["init"] = common.WrapResultFunc(
+	methodMap[Method_INIT] = common.WrapResultFunc(
 		gasAccountRuntime.Init)
-	methodMap["transfer"] = common.WrapResultFunc(
+	methodMap[Method_TRANSFER] = common.WrapResultFunc(
 		gasAccountRuntime.Transfer)
 
 	return methodMap
@@ -65,9 +81,9 @@ func registerTransferContractMethods(log protocol.Logger) map[string]common.Cont
 func (t *TransferManagerRuntime) Init(txSimContext protocol.TxSimContext,
 	params map[string][]byte) ([]byte, error) {
 
-	balance := string(params["balance"])
-	startIndex := string(params["startIndex"]) // 分批创建账户 - start index
-	endIndex := string(params["endIndex"])     // 分批创建账户 - end index
+	balance := string(params[InitParams_BALANCE])
+	startIndex := string(params[InitParams_STARTINDEX]) // 分批创建账户 - start index
+	endIndex := string(params[InitParams_ENDINDEX])     // 分批创建账户 - end index
 
 	start, _ := strconv.Atoi(startIndex)
 	end, _ := strconv.Atoi(endIndex)
@@ -81,10 +97,10 @@ func (t *TransferManagerRuntime) Init(txSimContext protocol.TxSimContext,
 
 func (t *TransferManagerRuntime) Transfer(txSimContext protocol.TxSimContext,
 	params map[string][]byte) ([]byte, error) {
-	from := string(params["f"])
-	to := string(params["f"])
-	trans, _ := strconv.Atoi(string("t"))
-	keys := []*vm.BatchKey{
+	from := string(params[TransferParams_FROM])
+	to := string(params[TransferParams_TO])
+	trans, _ := strconv.Atoi(string(params[TransferParams_Trans]))
+	keys := []*vmPb.BatchKey{
 		{from, empty, nil, contractName},
 		{to, empty, nil, contractName},
 	}