diff --git a/dtmcli/message.go b/dtmcli/message.go
index 61c962a..0809def 100644
--- a/dtmcli/message.go
+++ b/dtmcli/message.go
@@ -8,8 +8,7 @@ type Msg struct {
 
 // MsgData msg data
 type MsgData struct {
-	Gid           string    `json:"gid"`
-	TransType     string    `json:"trans_type"`
+	TransData
 	Steps         []MsgStep `json:"steps"`
 	QueryPrepared string    `json:"query_prepared"`
 }
@@ -23,10 +22,10 @@ type MsgStep struct {
 // NewMsg create new msg
 func NewMsg(server string, gid string) *Msg {
 	return &Msg{
-		MsgData: MsgData{
+		MsgData: MsgData{TransData: TransData{
 			Gid:       gid,
 			TransType: "msg",
-		},
+		}},
 		TransBase: TransBase{
 			Dtm: server,
 		},
diff --git a/dtmcli/saga.go b/dtmcli/saga.go
index f92c4c6..d94e8f4 100644
--- a/dtmcli/saga.go
+++ b/dtmcli/saga.go
@@ -8,9 +8,8 @@ type Saga struct {
 
 // SagaData sage data
 type SagaData struct {
-	Gid       string     `json:"gid"`
-	TransType string     `json:"trans_type"`
-	Steps     []SagaStep `json:"steps"`
+	TransData
+	Steps []SagaStep `json:"steps"`
 }
 
 // SagaStep one step of saga
@@ -23,10 +22,10 @@ type SagaStep struct {
 // NewSaga create a saga
 func NewSaga(server string, gid string) *Saga {
 	return &Saga{
-		SagaData: SagaData{
+		SagaData: SagaData{TransData: TransData{
 			Gid:       gid,
 			TransType: "saga",
-		},
+		}},
 		TransBase: TransBase{
 			Dtm: server,
 		},
diff --git a/dtmcli/tcc.go b/dtmcli/tcc.go
index 2cfbefe..692c818 100644
--- a/dtmcli/tcc.go
+++ b/dtmcli/tcc.go
@@ -9,7 +9,7 @@ import (
 
 // Tcc struct of tcc
 type Tcc struct {
-	Gid string
+	TransData
 	TransBase
 }
 
@@ -21,12 +21,8 @@ type TccGlobalFunc func(tcc *Tcc) (*resty.Response, error)
 // gid 全局事务id
 // tccFunc tcc事务函数，里面会定义全局事务的分支
 func TccGlobalTransaction(dtm string, gid string, tccFunc TccGlobalFunc) (rerr error) {
-	data := &M{
-		"gid":        gid,
-		"trans_type": "tcc",
-	}
-	tcc := &Tcc{TransBase: TransBase{Dtm: dtm}, Gid: gid}
-	rerr = tcc.CallDtm(data, "prepare")
+	tcc := &Tcc{TransBase: TransBase{Dtm: dtm}, TransData: TransData{Gid: gid, TransType: "tcc"}}
+	rerr = tcc.CallDtm(&tcc.TransData, "prepare")
 	if rerr != nil {
 		return rerr
 	}
@@ -34,7 +30,7 @@ func TccGlobalTransaction(dtm string, gid string, tccFunc TccGlobalFunc) (rerr e
 	defer func() {
 		x := recover()
 		operation := If(x == nil && rerr == nil, "submit", "abort").(string)
-		err := tcc.CallDtm(data, operation)
+		err := tcc.CallDtm(&tcc.TransData, operation)
 		if rerr == nil {
 			rerr = err
 		}
@@ -51,7 +47,7 @@ func TccGlobalTransaction(dtm string, gid string, tccFunc TccGlobalFunc) (rerr e
 func TccFromQuery(qs url.Values) (*Tcc, error) {
 	tcc := &Tcc{
 		TransBase: *TransBaseFromQuery(qs),
-		Gid:       qs.Get("gid"),
+		TransData: TransData{Gid: qs.Get("gid"), TransType: "tcc"},
 	}
 	if tcc.Dtm == "" || tcc.Gid == "" {
 		return nil, fmt.Errorf("bad tcc info. dtm: %s, gid: %s parentID: %s", tcc.Dtm, tcc.Gid, tcc.parentID)
diff --git a/dtmcli/types.go b/dtmcli/types.go
index 1d95054..2b61c19 100644
--- a/dtmcli/types.go
+++ b/dtmcli/types.go
@@ -46,6 +46,12 @@ type TransResult struct {
 	Message   string
 }
 
+// TransData 每个全局事务都有的数据
+type TransData struct {
+	Gid       string `json:"gid"`
+	TransType string `json:"trans_type"`
+}
+
 // TransBase 事务的基础类
 type TransBase struct {
 	IDGenerator
diff --git a/dtmcli/xa.go b/dtmcli/xa.go
index e590368..1d4ecfc 100644
--- a/dtmcli/xa.go
+++ b/dtmcli/xa.go
@@ -26,13 +26,13 @@ type XaClient struct {
 
 // Xa xa transaction
 type Xa struct {
-	Gid string
+	TransData
 	TransBase
 }
 
 // XaFromQuery construct xa info from request
 func XaFromQuery(qs url.Values) (*Xa, error) {
-	xa := &Xa{TransBase: *TransBaseFromQuery(qs), Gid: qs.Get("gid")}
+	xa := &Xa{TransBase: *TransBaseFromQuery(qs), TransData: TransData{Gid: qs.Get("gid"), TransType: "xa"}}
 	if xa.Gid == "" || xa.parentID == "" {
 		return nil, fmt.Errorf("bad xa info: gid: %s parentid: %s", xa.Gid, xa.parentID)
 	}
@@ -109,12 +109,8 @@ func (xc *XaClient) XaLocalTransaction(qs url.Values, xaFunc XaLocalFunc) (ret i
 
 // XaGlobalTransaction start a xa global transaction
 func (xc *XaClient) XaGlobalTransaction(gid string, xaFunc XaGlobalFunc) (rerr error) {
-	xa := Xa{TransBase: TransBase{IDGenerator: IDGenerator{}, Dtm: xc.Server}, Gid: gid}
-	data := &M{
-		"gid":        gid,
-		"trans_type": "xa",
-	}
-	rerr = xa.CallDtm(data, "prepare")
+	xa := Xa{TransBase: TransBase{IDGenerator: IDGenerator{}, Dtm: xc.Server}, TransData: TransData{Gid: gid, TransType: "xa"}}
+	rerr = xa.CallDtm(&xa.TransData, "prepare")
 	if rerr != nil {
 		return
 	}
@@ -123,7 +119,7 @@ func (xc *XaClient) XaGlobalTransaction(gid string, xaFunc XaGlobalFunc) (rerr e
 	defer func() {
 		x := recover()
 		operation := If(x != nil || rerr != nil, "abort", "submit").(string)
-		err := xa.CallDtm(data, operation)
+		err := xa.CallDtm(&xa.TransData, operation)
 		if rerr == nil { // 如果用户函数没有返回错误，那么返回dtm的
 			rerr = err
 		}