diff --git a/pkg/apis/devops/v1alpha2/register.go b/pkg/apis/devops/v1alpha2/register.go
index c1c1897c4..5b4535b8f 100644
--- a/pkg/apis/devops/v1alpha2/register.go
+++ b/pkg/apis/devops/v1alpha2/register.go
@@ -721,7 +721,7 @@ func addWebService(c *restful.Container) error {
 		Param(webservice.QueryParameter("limit", "limit count").
 			Required(false).
 			DataFormat("limit=%d")).
-		Returns(http.StatusOK, RespOK,[]devops.NodeSteps{}).
+		Returns(http.StatusOK, RespOK, []devops.NodeSteps{}).
 		Writes([]devops.NodeSteps{}))
 
 	// match /pipeline-model-converter/toJenkinsfile
@@ -784,7 +784,7 @@ func addWebService(c *restful.Container) error {
 		Param(webservice.QueryParameter("limit", "limit count").
 			Required(true).
 			DataFormat("limit=%d")).
-		Returns(http.StatusOK, RespOK,[]devops.NodesDetail{}).
+		Returns(http.StatusOK, RespOK, []devops.NodesDetail{}).
 		Writes(devops.NodesDetail{}))
 
 	// out of scm get all steps in nodes.
@@ -799,7 +799,7 @@ func addWebService(c *restful.Container) error {
 		Param(webservice.QueryParameter("limit", "limit count").
 			Required(true).
 			DataFormat("limit=%d")).
-		Returns(http.StatusOK, RespOK,[]devops.NodesDetail{}).
+		Returns(http.StatusOK, RespOK, []devops.NodesDetail{}).
 		Writes(devops.NodesDetail{}))
 
 	c.Add(webservice)
diff --git a/pkg/models/devops/project_credential.go b/pkg/models/devops/project_credential.go
index a8d33bad8..dd08a4dab 100644
--- a/pkg/models/devops/project_credential.go
+++ b/pkg/models/devops/project_credential.go
@@ -53,30 +53,23 @@ type JenkinsCredential struct {
 }
 
 type UsernamePasswordCredential struct {
-	Id          string `json:"id"`
-	Username    string `json:"username,omitempty"`
-	Password    string `json:"password,omitempty"`
-	Description string `json:"description,omitempty"`
+	Username string `json:"username,omitempty"`
+	Password string `json:"password,omitempty"`
 }
 
 type SshCredential struct {
-	Id          string `json:"id"`
-	Username    string `json:"username,omitempty"`
-	Passphrase  string `json:"passphrase,omitempty"`
-	PrivateKey  string `json:"private_key,omitempty" mapstructure:"private_key"`
-	Description string `json:"description,omitempty"`
+	Username   string `json:"username,omitempty"`
+	Passphrase string `json:"passphrase,omitempty"`
+	PrivateKey string `json:"private_key,omitempty" mapstructure:"private_key"`
 }
 
 type SecretTextCredential struct {
-	Id          string `json:"id"`
 	Secret      string `json:"secret,omitempty"`
 	Description string `json:"description,omitempty"`
 }
 
 type KubeconfigCredential struct {
-	Id          string `json:"id"`
-	Content     string `json:"content,omitempty"`
-	Description string `json:"description,omitempty"`
+	Content string `json:"content,omitempty"`
 }
 
 const (
diff --git a/pkg/models/devops/project_credential_handler.go b/pkg/models/devops/project_credential_handler.go
index 4fdf38cbe..f70d2e660 100644
--- a/pkg/models/devops/project_credential_handler.go
+++ b/pkg/models/devops/project_credential_handler.go
@@ -32,23 +32,23 @@ import (
 
 func CreateProjectCredential(projectId, username string, credentialRequest *JenkinsCredential) (string, error) {
 	jenkinsClient := admin_jenkins.Client()
+	err := checkJenkinsCredentialExists(projectId, credentialRequest.Domain, credentialRequest.Id)
+	if err != nil {
+		glog.Errorf("%+v", err)
+		return "", err
+	}
 	switch credentialRequest.Type {
 	case CredentialTypeUsernamePassword:
-		err := checkJenkinsCredentialExists(projectId, credentialRequest.Domain, credentialRequest.UsernamePasswordCredential.Id)
-		if err != nil {
-			glog.Errorf("%+v", err)
-			return "", err
-		}
 		if credentialRequest.UsernamePasswordCredential == nil {
 			err := fmt.Errorf("usename_password should not be nil")
 			glog.Error(err)
 			return "", restful.NewError(http.StatusBadRequest, err.Error())
 		}
 		credentialId, err := jenkinsClient.CreateUsernamePasswordCredentialInFolder(credentialRequest.Domain,
-			credentialRequest.UsernamePasswordCredential.Id,
+			credentialRequest.Id,
 			credentialRequest.UsernamePasswordCredential.Username,
 			credentialRequest.UsernamePasswordCredential.Password,
-			credentialRequest.UsernamePasswordCredential.Description,
+			credentialRequest.Description,
 			projectId)
 		if err != nil {
 			glog.Errorf("%+v", err)
@@ -61,22 +61,17 @@ func CreateProjectCredential(projectId, username string, credentialRequest *Jenk
 		}
 		return *credentialId, nil
 	case CredentialTypeSsh:
-		err := checkJenkinsCredentialExists(projectId, credentialRequest.Domain, credentialRequest.SshCredential.Id)
-		if err != nil {
-			glog.Errorf("%+v", err)
-			return "", err
-		}
 		if credentialRequest.SshCredential == nil {
 			err := fmt.Errorf("ssh should not be nil")
 			glog.Error(err)
 			return "", restful.NewError(http.StatusBadRequest, err.Error())
 		}
 		credentialId, err := jenkinsClient.CreateSshCredentialInFolder(credentialRequest.Domain,
-			credentialRequest.SshCredential.Id,
+			credentialRequest.Id,
 			credentialRequest.SshCredential.Username,
 			credentialRequest.SshCredential.Passphrase,
 			credentialRequest.SshCredential.PrivateKey,
-			credentialRequest.SshCredential.Description,
+			credentialRequest.Description,
 			projectId)
 		if err != nil {
 			glog.Errorf("%+v", err)
@@ -90,11 +85,6 @@ func CreateProjectCredential(projectId, username string, credentialRequest *Jenk
 		}
 		return *credentialId, nil
 	case CredentialTypeSecretText:
-		err := checkJenkinsCredentialExists(projectId, credentialRequest.Domain, credentialRequest.SecretTextCredential.Id)
-		if err != nil {
-			glog.Errorf("%+v", err)
-			return "", err
-		}
 		if credentialRequest.SecretTextCredential == nil {
 			err := fmt.Errorf("secret_text should not be nil")
 			glog.Error(err)
@@ -102,9 +92,9 @@ func CreateProjectCredential(projectId, username string, credentialRequest *Jenk
 		}
 
 		credentialId, err := jenkinsClient.CreateSecretTextCredentialInFolder(credentialRequest.Domain,
-			credentialRequest.SecretTextCredential.Id,
+			credentialRequest.Id,
 			credentialRequest.SecretTextCredential.Secret,
-			credentialRequest.SecretTextCredential.Description,
+			credentialRequest.Description,
 			projectId)
 		if err != nil {
 			glog.Errorf("%+v", err)
@@ -118,20 +108,15 @@ func CreateProjectCredential(projectId, username string, credentialRequest *Jenk
 		}
 		return *credentialId, nil
 	case CredentialTypeKubeConfig:
-		err := checkJenkinsCredentialExists(projectId, credentialRequest.Domain, credentialRequest.KubeconfigCredential.Id)
-		if err != nil {
-			glog.Errorf("%+v", err)
-			return "", err
-		}
 		if credentialRequest.KubeconfigCredential == nil {
 			err := fmt.Errorf("kubeconfig should not be nil")
 			glog.Error(err)
 			return "", restful.NewError(http.StatusBadRequest, err.Error())
 		}
 		credentialId, err := jenkinsClient.CreateKubeconfigCredentialInFolder(credentialRequest.Domain,
-			credentialRequest.KubeconfigCredential.Id,
+			credentialRequest.Id,
 			credentialRequest.KubeconfigCredential.Content,
-			credentialRequest.KubeconfigCredential.Description,
+			credentialRequest.Description,
 			projectId)
 		if err != nil {
 			glog.Errorf("%+v", err)
@@ -173,7 +158,7 @@ func UpdateProjectCredential(projectId, credentialId string, credentialRequest *
 			credentialId,
 			credentialRequest.UsernamePasswordCredential.Username,
 			credentialRequest.UsernamePasswordCredential.Password,
-			credentialRequest.UsernamePasswordCredential.Description,
+			credentialRequest.Description,
 			projectId)
 		if err != nil {
 			glog.Errorf("%+v", err)
@@ -192,7 +177,7 @@ func UpdateProjectCredential(projectId, credentialId string, credentialRequest *
 			credentialRequest.SshCredential.Username,
 			credentialRequest.SshCredential.Passphrase,
 			credentialRequest.SshCredential.PrivateKey,
-			credentialRequest.SshCredential.Description,
+			credentialRequest.Description,
 			projectId)
 		if err != nil {
 			glog.Errorf("%+v", err)
@@ -225,7 +210,7 @@ func UpdateProjectCredential(projectId, credentialId string, credentialRequest *
 		credentialId, err := jenkinsClient.UpdateKubeconfigCredentialInFolder(credentialRequest.Domain,
 			credentialId,
 			credentialRequest.KubeconfigCredential.Content,
-			credentialRequest.KubeconfigCredential.Description,
+			credentialRequest.Description,
 			projectId)
 		if err != nil {
 			glog.Errorf("%+v", err)
@@ -321,11 +306,11 @@ func GetProjectCredential(projectId, credentialId, domain, getContent string) (*
 
 			doc.Find("input[name*=id][type=text]").Each(func(i int, selection *goquery.Selection) {
 				value, _ := selection.Attr("value")
-				content.Id = value
+				response.Id = value
 			})
 			doc.Find("input[name*=description]").Each(func(i int, selection *goquery.Selection) {
 				value, _ := selection.Attr("value")
-				content.Description = value
+				response.Description = value
 			})
 			response.KubeconfigCredential = content
 		case CredentialTypeUsernamePassword:
@@ -337,11 +322,11 @@ func GetProjectCredential(projectId, credentialId, domain, getContent string) (*
 
 			doc.Find("input[name*=id][type=text]").Each(func(i int, selection *goquery.Selection) {
 				value, _ := selection.Attr("value")
-				content.Id = value
+				response.Id = value
 			})
 			doc.Find("input[name*=description]").Each(func(i int, selection *goquery.Selection) {
 				value, _ := selection.Attr("value")
-				content.Description = value
+				response.Description = value
 			})
 			response.UsernamePasswordCredential = content
 		case CredentialTypeSsh:
@@ -353,11 +338,11 @@ func GetProjectCredential(projectId, credentialId, domain, getContent string) (*
 
 			doc.Find("input[name*=id][type=text]").Each(func(i int, selection *goquery.Selection) {
 				value, _ := selection.Attr("value")
-				content.Id = value
+				response.Id = value
 			})
 			doc.Find("input[name*=description]").Each(func(i int, selection *goquery.Selection) {
 				value, _ := selection.Attr("value")
-				content.Description = value
+				response.Description = value
 			})
 			doc.Find("textarea[name*=privateKey]").Each(func(i int, selection *goquery.Selection) {
 				value := selection.Text()