diff --git a/route/cp_r/cp_relation.go b/route/cp_r/cp_relation.go
index 87d66ddddc633f7128fbde326084e81a096de20e..52762b210d64613a639c2314ef6deaadbe21ae29 100644
--- a/route/cp_r/cp_relation.go
+++ b/route/cp_r/cp_relation.go
@@ -34,6 +34,9 @@ import (
 func CheckUserCpRelation(c *gin.Context) (*mycontext.MyContext, error) {
 	myCtx := mycontext.CreateMyContext(c.Keys)
 	externalId := c.Query("externalId")
+	if externalId == "" {
+		return myCtx, bizerr.InvalidParameter
+	}
 
 	_, lang, err := req.GetUserIdLang(c, myCtx)
 	if err != nil {
@@ -71,6 +74,9 @@ func CheckUserCpRelation(c *gin.Context) (*mycontext.MyContext, error) {
 func CpRelation(c *gin.Context) (*mycontext.MyContext, error) {
 	myCtx := mycontext.CreateMyContext(c.Keys)
 	externalId := c.PostForm("externalId")
+	if externalId == "" {
+		return myCtx, bizerr.InvalidParameter
+	}
 
 	myUserId, lang, err := req.GetUserIdLang(c, myCtx)
 	if err != nil {
@@ -110,6 +116,9 @@ func CpRelation(c *gin.Context) (*mycontext.MyContext, error) {
 func ReplyCpInvite(c *gin.Context) (*mycontext.MyContext, error) {
 	myCtx := mycontext.CreateMyContext(c.Keys)
 	externalId := c.PostForm("externalId")
+	if externalId == "" {
+		return myCtx, bizerr.InvalidParameter
+	}
 	optType, err := strconv.Atoi(c.PostForm("type"))
 	if err != nil || optType > 2 || optType < 1 {
 		return myCtx, bizerr.InvalidParameter
@@ -240,6 +249,9 @@ func ReplyCpInvite(c *gin.Context) (*mycontext.MyContext, error) {
 func ReplyCpCancel(c *gin.Context) (*mycontext.MyContext, error) {
 	myCtx := mycontext.CreateMyContext(c.Keys)
 	externalId := c.PostForm("externalId")
+	if externalId == "" {
+		return myCtx, bizerr.InvalidParameter
+	}
 	optType, err := strconv.Atoi(c.PostForm("type"))
 	if err != nil || optType > 2 || optType < 1 {
 		return myCtx, bizerr.InvalidParameter
@@ -345,6 +357,9 @@ type CpDetail struct {
 func CpDetailPage(c *gin.Context) (*mycontext.MyContext, error) {
 	myCtx := mycontext.CreateMyContext(c.Keys)
 	externalId := c.Query("externalId")
+	if externalId == "" {
+		return myCtx, bizerr.InvalidParameter
+	}
 
 	model := domain.CreateModelContext(myCtx)
 	user, err := user_m.GetUserByExtId(model, externalId)