diff --git a/README.md b/README.md
index aa34d3b..b53d7eb 100644
--- a/README.md
+++ b/README.md
@@ -21,13 +21,15 @@ data 为 base64 URL 编码(将编码字符串中`/`替换为`_`，`+`替换为`-
   "template": "模板路径/网络地址",
   "delete": "",
   "rename": {"原文本": "新文本"},
-  "group": false,
   "group-type": "selector",
   "sort": "name",
   "sort-type": "asc"
 }
 ```
 
+该 JSON 同时可用于 `convert` 的 `--config` 参数，以便本地生成 sing-box 配置。
+例如将上方 JSON 内容存放于 `config.json` 后执行 `sub2sing-box convert -c ./config.json` 即可生成 sing-box 配置，免去每次生成时重复设置参数
+
 ## Template 占位符
 
 - `<all-proxy-tags>`: 插入所有节点标签
diff --git a/cmd/convert.go b/cmd/convert.go
index 834781d..39c89a2 100644
--- a/cmd/convert.go
+++ b/cmd/convert.go
@@ -19,7 +19,6 @@ var (
 	output        string
 	delete        string
 	rename        map[string]string
-	group         bool
 	groupType     string
 	sortKey       string
 	sortType      string
@@ -33,7 +32,6 @@ func init() {
 	convertCmd.Flags().StringVarP(&output, "output", "o", "", "output file path")
 	convertCmd.Flags().StringVarP(&delete, "delete", "d", "", "delete proxy with regex")
 	convertCmd.Flags().StringToStringVarP(&rename, "rename", "r", nil, "rename proxy with regex")
-	convertCmd.Flags().BoolVarP(&group, "group", "g", false, "group proxies by country")
 	convertCmd.Flags().StringVarP(&groupType, "group-type", "G", "selector", "group type, selector or urltest")
 	convertCmd.Flags().StringVarP(&sortKey, "sort", "S", "tag", "sort key, tag or num")
 	convertCmd.Flags().StringVarP(&sortType, "sort-type", "T", "asc", "sort type, asc or desc")
diff --git a/common/convert.go b/common/convert.go
index 61e5de0..c62c0df 100644
--- a/common/convert.go
+++ b/common/convert.go
@@ -90,7 +90,13 @@ func Convert(
 			return "", err
 		}
 		reg := regexp.MustCompile("\"<[A-Za-z]{2}>\"")
-		if reg.MatchString(templateDate) || strings.Contains(templateDate, constant.AllCountryTags) {
+		group := false
+		for _, v := range model.CountryEnglishName {
+			if strings.Contains(templateDate, v) {
+				group = true
+			}
+		}
+		if reg.MatchString(templateDate) || strings.Contains(templateDate, constant.AllCountryTags) || group {
 			outbounds = AddCountryGroup(outbounds, groupType, sortKey, sortType)
 		}
 		var template model.Config