diff --git a/service/user.go b/service/user.go
index bbf3f91..d3accc5 100644
--- a/service/user.go
+++ b/service/user.go
@@ -10,12 +10,9 @@ import (
 	"electricity_bill_calc/repository"
 	"electricity_bill_calc/utils"
 	"fmt"
-	"log"
-	"strings"
 	"time"
 
 	"github.com/google/uuid"
-	"github.com/mozillazg/go-pinyin"
 	"xorm.io/builder"
 )
 
@@ -197,14 +194,8 @@ func (u _UserService) CreateUser(user *model.User, detail *model.UserDetail) (st
 	user.ResetNeeded = true
 
 	if detail.Name != nil {
-		abbr := pinyin.Pinyin(*detail.Name, pinyin.NewArgs())
-		var abbrCollect = make([]string, 0)
-		for _, a := range abbr {
-			abbrCollect = append(abbrCollect, a[0][0:1])
-		}
-		finalAbbr := strings.Join(abbrCollect, "")
+		finalAbbr := utils.PinyinAbbr(*detail.Name)
 		detail.Abbr = &finalAbbr
-		log.Printf("[service] [debug] detail: %v", detail)
 	}
 
 	tx := global.DBConn.NewSession()
diff --git a/utils/utils.go b/utils/utils.go
index 079af2f..66b76ba 100644
--- a/utils/utils.go
+++ b/utils/utils.go
@@ -1,5 +1,11 @@
 package utils
 
+import (
+	"strings"
+
+	"github.com/mozillazg/go-pinyin"
+)
+
 func Contains[T string | int | uint](element T, slice []T) bool {
 	for _, v := range slice {
 		if v == element {
@@ -8,3 +14,13 @@ func Contains[T string | int | uint](element T, slice []T) bool {
 	}
 	return false
 }
+
+func PinyinAbbr(source string) string {
+	abbr := pinyin.Pinyin(source, pinyin.NewArgs())
+	var abbrCollect = make([]string, 0)
+	for _, a := range abbr {
+		abbrCollect = append(abbrCollect, a[0][0:1])
+	}
+	finalAbbr := strings.Join(abbrCollect, "")
+	return finalAbbr
+}