diff --git a/api/service/area.go b/api/service/area.go
index 0fe033c..663e1df 100644
--- a/api/service/area.go
+++ b/api/service/area.go
@@ -38,6 +38,10 @@ func (r *AreaService) AddArea(req requests.AddArea) (bool, string, error) {
 		return false, "", errors.New("上级地区错误")
 	}
 
+	if len(req.AreaId) > 6 {
+		return false, "", errors.New("请输入正确地区编码")
+	}
+
 	// 检测编码是否重复
 	maps = make(map[string]interface{})
 	maps["area_id"] = req.AreaId
@@ -94,6 +98,10 @@ func (r *AreaService) PutArea(areaId int, req requests.PutArea) (bool, error) {
 		return false, err
 	}
 
+	if len(req.AreaId) > 6 {
+		return false, errors.New("请输入正确地区编码")
+	}
+
 	// 检测编码是否重复
 	maps := make(map[string]interface{})
 	maps["area_id"] = req.AreaId