diff --git a/session_test.go b/session_test.go
index 1911aa6..fc68714 100644
--- a/session_test.go
+++ b/session_test.go
@@ -76,7 +76,7 @@ func TestSession_Post(t *testing.T) {
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			ses := NewSession()
-			got, err := ses.Post("http://httpbin.org/post").SetBody(tt.args.params...).Execute()
+			got, err := ses.Post("http://httpbin.org/post").AutoSetBody(tt.args.params...).Execute()
 
 			if err != nil {
 				t.Errorf("Metchod error = %v", err)
@@ -127,7 +127,7 @@ func TestSession_Setparams(t *testing.T) {
 		t.Run(tt.name, func(t *testing.T) {
 			ses := NewSession()
 
-			got, err := ses.Post("http://httpbin.org/post").SetBody(tt.args.params...).Execute()
+			got, err := ses.Post("http://httpbin.org/post").AutoSetBody(tt.args.params...).Execute()
 			if (err != nil) != tt.wantErr {
 				t.Errorf("Metchod error = %v, wantErr %v", err, tt.wantErr)
 				return
@@ -169,7 +169,7 @@ func TestSession_PostUploadFile(t *testing.T) {
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			ses := NewSession()
-			got, err := ses.Post("http://httpbin.org/post").SetBody(tt.args.params, TypeFormData).Execute()
+			got, err := ses.Post("http://httpbin.org/post").AutoSetBody(tt.args.params, TypeFormData).Execute()
 
 			if err != nil {
 				t.Errorf("Metchod error = %v", err)
@@ -213,7 +213,7 @@ func TestSession_Put(t *testing.T) {
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			ses := NewSession()
-			got, err := ses.Put("http://httpbin.org/put").SetBody(tt.args.params, TypeFormData).Execute()
+			got, err := ses.Put("http://httpbin.org/put").AutoSetBody(tt.args.params, TypeFormData).Execute()
 
 			if err != nil {
 				t.Errorf("Metchod error = %v", err)
@@ -257,7 +257,7 @@ func TestSession_Patch(t *testing.T) {
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			ses := NewSession()
-			got, err := ses.Patch("http://httpbin.org/patch").SetBody(tt.args.params, TypeFormData).Execute()
+			got, err := ses.Patch("http://httpbin.org/patch").AutoSetBody(tt.args.params, TypeFormData).Execute()
 
 			if err != nil {
 				t.Errorf("Metchod error = %v", err)
diff --git a/workflow.go b/workflow.go
index b08819f..2029893 100644
--- a/workflow.go
+++ b/workflow.go
@@ -185,7 +185,18 @@ func (wf *Workflow) SetURLRawPath(path string) *Workflow {
 }
 
 // SetBody 参数设置
-func (wf *Workflow) SetBody(params ...interface{}) *Workflow {
+func (wf *Workflow) SetBody(body IBody) *Workflow {
+	wf.Body = body
+	return wf
+}
+
+// GetBody 参数设置
+func (wf *Workflow) GetBody(body IBody) IBody {
+	return wf.Body
+}
+
+// AutoSetBody 参数设置
+func (wf *Workflow) AutoSetBody(params ...interface{}) *Workflow {
 
 	if params != nil {
 		plen := len(params)