diff --git a/server/adminserver/api/v1/system/mail.go b/server/adminserver/api/v1/system/mail.go
index ccdcb4eb..c16b0374 100644
--- a/server/adminserver/api/v1/system/mail.go
+++ b/server/adminserver/api/v1/system/mail.go
@@ -2,6 +2,7 @@ package system
 
 import (
 	"f5"
+	"main/common"
 	"main/constant"
 	"main/model/system"
 	"net/http"
@@ -30,8 +31,8 @@ func (this *MailApi) AddMail(c *gin.Context) {
 		UserRegEndTime int32 `json:"user_reg_end_time"`
 		Subject string `json:"subject"`
 		Content string `json:"content"`
-		Attachments string `json:"attachments"`
-		Recipients string `json:"recipients"`
+		Attachments []common.Attachment `json:"attachments"`
+		Recipients []string `json:"recipients"`
 	}{}
 	if err := c.ShouldBindJSON(&reqJson); err != nil {
 		c.JSON(http.StatusOK, gin.H{
diff --git a/server/adminserver/common/types.go b/server/adminserver/common/types.go
index dd06b34c..11efc62c 100644
--- a/server/adminserver/common/types.go
+++ b/server/adminserver/common/types.go
@@ -1,5 +1,10 @@
 package common
 
+type Attachment struct {
+	ItemId int32 `json:"item_id"`
+	ItemNum int32 `json:"item_num"`
+}
+
 type App interface {
 	Run(func(), func())
 	AddSession(accountId string) string
diff --git a/server/adminserver/model/system/mail.go b/server/adminserver/model/system/mail.go
index 63758d70..cb72324a 100644
--- a/server/adminserver/model/system/mail.go
+++ b/server/adminserver/model/system/mail.go
@@ -1,5 +1,9 @@
 package system
 
+import (
+	"main/common"
+)
+
 /*
 Recipients:
    [
@@ -23,8 +27,8 @@ type Mail struct {
 	MailType int32 `gorm:"column:mail_type" json:"mail_type"`
 	Subject string `gorm:"column:subject" json:"subject"`
 	Content string `gorm:"column:content" json:"content"`
-	Recipients string `gorm:"column:recipients" json:"recipients"`
-	Attachments string `gorm:"column:attachments" json:"attachments"`
+	Recipients []string `gorm:"column:recipients;serializer:json" json:"recipients"`
+	Attachments []common.Attachment `gorm:"column:attachments" json:"attachments"`
 	Deleted int32 `gorm:"column:deleted" json:"deleted"`
 	SendTime int32 `gorm:"column:sendtime" json:"sendtime"`
 	UserRegStartTime int32 `gorm:"column:user_reg_start_time" json:"user_reg_start_time"`