diff --git a/README.md b/README.md
index 049e6db..0cb3b83 100644
--- a/README.md
+++ b/README.md
@@ -22,9 +22,17 @@
 | <div align="center"><b>Default modified <a href="https://ii.do/43.html">[Guide]</a></b></div> | <div align="center"><b>Neko Mdui <a href="https://github.com/MikoyChinese">@MikoyChinese</a></b></div> |                                                                            |
 | ![默认主题魔改](https://fastly.jsdelivr.net/gh/idarku/img@main/me/1631120192341.webp)       | ![Neko Mdui](resource/template/theme-mdui/screenshot.png)                                              |                                                                            |
 
-## User Guide
+## Supported Languages
 
-[![Crowdin](https://badges.crowdin.net/nezha/localized.svg)](https://crowdin.com/project/nezha)
+Help us improve translation [![Crowdin](https://badges.crowdin.net/nezha/localized.svg)](https://crowdin.com/project/nezha)
+
+- English
+- 简体中文
+- Español _WIP_
+
+You can change the system language in the settings page (`/setting`) after the admin panel is installed.
+
+## User Guide
 
 - [English](docs/UserGuide_en.md)
 - [中文文档](docs/UserGuide_zh.md)
diff --git a/cmd/dashboard/controller/member_page.go b/cmd/dashboard/controller/member_page.go
index e658369..df0cf7d 100644
--- a/cmd/dashboard/controller/member_page.go
+++ b/cmd/dashboard/controller/member_page.go
@@ -69,6 +69,8 @@ func (mp *memberPage) notification(c *gin.Context) {
 
 func (mp *memberPage) setting(c *gin.Context) {
 	c.HTML(http.StatusOK, "dashboard/setting", mygin.CommonEnvironment(c, gin.H{
-		"Title": singleton.Localizer.MustLocalize(&i18n.LocalizeConfig{MessageID: "Settings"}),
+		"Title":     singleton.Localizer.MustLocalize(&i18n.LocalizeConfig{MessageID: "Settings"}),
+		"Languages": model.Languages,
+		"Themes":    model.Themes,
 	}))
 }
diff --git a/model/config.go b/model/config.go
index aa7f106..5164b98 100644
--- a/model/config.go
+++ b/model/config.go
@@ -10,6 +10,19 @@ import (
 	"gopkg.in/yaml.v2"
 )
 
+var Languages = map[string]string{
+	"zh-CN": "简体中文",
+	"en-US": "English",
+	"es-ES": "Español",
+}
+
+var Themes = map[string]string{
+	"default":  "Default",
+	"daynight": "JackieSung DayNight",
+	"mdui":     "Neko Mdui",
+	"hotaru":   "Hotaru",
+}
+
 const (
 	ConfigTypeGitHub = "github"
 	ConfigTypeGitee  = "gitee"
diff --git a/pkg/utils/utils.go b/pkg/utils/utils.go
index 5f8cacd..5989423 100644
--- a/pkg/utils/utils.go
+++ b/pkg/utils/utils.go
@@ -68,14 +68,3 @@ func IPDesensitize(ipAddr string) string {
 	ipAddr = ipv6Desensitize(ipAddr)
 	return ipAddr
 }
-
-func PathExists(path string) (bool, error) {
-	_, err := os.Stat(path)
-	if err == nil {
-		return true, nil
-	}
-	if os.IsNotExist(err) {
-		return false, nil
-	}
-	return false, err
-}
diff --git a/resource/l10n/zh-CN.toml b/resource/l10n/zh-CN.toml
index 7eb1faa..b3fe1fb 100644
--- a/resource/l10n/zh-CN.toml
+++ b/resource/l10n/zh-CN.toml
@@ -271,9 +271,6 @@ other = "管理员列表"
 [Theme]
 other = "主题"
 
-[DefaultTheme]
-other = "默认主题"
-
 [CustomCodes]
 other = "自定义代码(style、script 都可以)"
 
diff --git a/resource/template/dashboard/setting.html b/resource/template/dashboard/setting.html
index f4e232c..f3f2561 100644
--- a/resource/template/dashboard/setting.html
+++ b/resource/template/dashboard/setting.html
@@ -15,22 +15,18 @@
             <div class="field">
                 <label>{{tr "Theme"}}</label>
                 <select name="Theme">
-                    <option value="default" {{if eq .Conf.Site.Theme "default" }} selected="selected" {{end}}>{{tr "DefaultTheme"}}
-                    </option>
-                    <option value="daynight" {{if eq .Conf.Site.Theme "daynight" }} selected="selected" {{end}}>
-                        JackieSung DayNight</option>
-                    <option value="hotaru" {{if eq .Conf.Site.Theme "hotaru" }} selected="selected" {{end}}>CokeMine
-                        Hotaru</option>
-                    <option value="mdui" {{if eq .Conf.Site.Theme "mdui" }} selected="selected" {{end}}>Neko Mdui</option>
+                    {{range $k,$v := .Themes}}
+                    <option value="{{$k}}" {{if eq $.Conf.Site.Theme $k }} selected="selected" {{end}}>{{$v}}
+                    {{end}}
                 </select>
             </div>
             <div class="field">
                 <label>Language</label>
                 <select name="Language">
-                    <option value="zh-CN" {{if eq .Conf.Language "zh-CN" }} selected="selected" {{end}}>
-                        简体中文</option>
-                    <option value="en-US" {{if eq .Conf.Language "en-US" }} selected="selected" {{end}}>
-                        English</option>
+                    {{range $k,$v := .Languages}}
+                    <option value="{{$k}}" {{if eq $.Conf.Language $k }} selected="selected" {{end}}>
+                        {{$v}}</option>
+                    {{end}}
                 </select>
             </div>
             <div class="field">
diff --git a/service/singleton/l10n.go b/service/singleton/l10n.go
index b2676a9..0ede9f3 100644
--- a/service/singleton/l10n.go
+++ b/service/singleton/l10n.go
@@ -4,9 +4,10 @@ import (
 	"log"
 
 	"github.com/BurntSushi/toml"
-	"github.com/naiba/nezha/pkg/utils"
 	"github.com/nicksnyder/go-i18n/v2/i18n"
 	"golang.org/x/text/language"
+
+	"github.com/naiba/nezha/model"
 )
 
 var Localizer *i18n.Localizer
@@ -15,13 +16,11 @@ func InitLocalizer() {
 	bundle := i18n.NewBundle(language.Chinese)
 	bundle.RegisterUnmarshalFunc("toml", toml.Unmarshal)
 
-	userCustomLanguageFile := "resource/l10n/" + Conf.Language + ".toml"
-
-	if exists, err := utils.PathExists(userCustomLanguageFile); !exists {
-		log.Println("NEZHA>> language file not found:", userCustomLanguageFile, err)
+	if _, exists := model.Languages[Conf.Language]; !exists {
+		log.Println("NEZHA>> language not exists:", Conf.Language)
 		Conf.Language = "zh-CN"
 	} else {
-		_, err := bundle.LoadMessageFile(userCustomLanguageFile)
+		_, err := bundle.LoadMessageFile("resource/l10n/" + Conf.Language + ".toml")
 		if err != nil {
 			panic(err)
 		}