diff --git a/controllers/controller.go b/controllers/controller.go
index 179aea7..982a479 100644
--- a/controllers/controller.go
+++ b/controllers/controller.go
@@ -94,9 +94,8 @@ func callFunc(c *gin.Context, worker func() (retVal interface{}, errCode string,
 
 func captchaVerify(c *gin.Context, code string) bool {
 	session := sessions.Default(c)
-	if captchaId := session.Get(model.SessionKey); captchaId != nil {
-		globals.SugarLogger.Debugf("captchaVerify capid :%v", captchaId)
-		session.Delete(model.SessionKey)
+	if captchaId := session.Get(c.ClientIP() + model.SessionKey); captchaId != nil {
+		session.Delete(c.ClientIP() + model.SessionKey)
 		_ = session.Save()
 		if captcha.VerifyString(captchaId.(string), code) {
 			return true
@@ -104,7 +103,6 @@ func captchaVerify(c *gin.Context, code string) bool {
 			return false
 		}
 	} else {
-		globals.SugarLogger.Debugf("captchaVerify2 capid :%v", captchaId)
 		return false
 	}
 }
diff --git a/controllers/user_controller.go b/controllers/user_controller.go
index f89edbe..e0f1c97 100644
--- a/controllers/user_controller.go
+++ b/controllers/user_controller.go
@@ -37,7 +37,6 @@ func RegisterUser(c *gin.Context) {
 		globals.SugarLogger.Debugf("End API :%s error:%v:", c.Request.URL, err)
 		return
 	}
-	globals.SugarLogger.Debugf("Begin API :%s params: %v ip: %s", c.Request.URL, utils.Format4Output(user, true))
 	if !captchaVerify(c, user.Code) {
 		c.JSON(http.StatusOK, &CallBack{
 			Code: model.ErrCodeNormal,
diff --git a/utils/utils.go b/utils/utils.go
index ded1e35..addb7f0 100644
--- a/utils/utils.go
+++ b/utils/utils.go
@@ -66,7 +66,7 @@ func Captcha(c *gin.Context, length ...int) {
 	}
 	captchaId := captcha.NewLen(l)
 	session := sessions.Default(c)
-	session.Set(model.SessionKey, captchaId)
+	session.Set(c.ClientIP()+model.SessionKey, captchaId)
 	_ = session.Save()
 	_ = Serve(c.Writer, c.Request, captchaId, ".png", "zh", false, w, h)
 }