diff --git a/backend/services/preferences_service.go b/backend/services/preferences_service.go
index 43c03df..0a85eaf 100644
--- a/backend/services/preferences_service.go
+++ b/backend/services/preferences_service.go
@@ -6,6 +6,7 @@ import (
 	"github.com/adrg/sysfont"
 	runtime2 "github.com/wailsapp/wails/v2/pkg/runtime"
 	"net/http"
+	"os"
 	"sort"
 	"strings"
 	"sync"
@@ -50,6 +51,7 @@ func (p *preferencesService) SetPreferences(pf types.Preferences) (resp types.JS
 		return
 	}
 
+	p.UpdateEnv()
 	resp.Success = true
 	return
 }
@@ -114,6 +116,11 @@ func (p *preferencesService) GetBuildInDecoder() (resp types.JSResp) {
 	return
 }
 
+func (p *preferencesService) GetLanguage() string {
+	pref := p.pref.GetPreferences()
+	return pref.General.Language
+}
+
 func (p *preferencesService) SetAppVersion(ver string) {
 	if !strings.HasPrefix(ver, "v") {
 		p.clientVersion = "v" + ver
@@ -246,3 +253,12 @@ func (p *preferencesService) CheckForUpdate() (resp types.JSResp) {
 	}
 	return
 }
+
+// UpdateEnv Update System Environment
+func (p *preferencesService) UpdateEnv() {
+	if p.GetLanguage() == "zh" {
+		os.Setenv("LANG", "zh_CN.UTF-8")
+	} else {
+		os.Unsetenv("LANG")
+	}
+}
diff --git a/main.go b/main.go
index 158da48..83916fc 100644
--- a/main.go
+++ b/main.go
@@ -35,6 +35,7 @@ func main() {
 	pubsubSvc := services.Pubsub()
 	prefSvc := services.Preferences()
 	prefSvc.SetAppVersion(version)
+	prefSvc.UpdateEnv()
 	windowWidth, windowHeight, maximised := prefSvc.GetWindowSize()
 	windowStartState := options.Normal
 	if maximised {