diff --git a/modules/setting/config.go b/modules/setting/config.go
index 1391c37799..b09bbb0390 100644
--- a/modules/setting/config.go
+++ b/modules/setting/config.go
@@ -54,41 +54,16 @@ type RepositoryStruct struct {
 	GitGuideRemoteName *config.Value[string]
 }
 
-const (
-	InstanceNoticeLevelInfo    = "info"
-	InstanceNoticeLevelSuccess = "success"
-	InstanceNoticeLevelWarning = "warning"
-	InstanceNoticeLevelDanger  = "danger"
-)
-
 type InstanceNotice struct {
 	Enabled bool
 	Message string
-	Level   string
 
 	StartTime int64
 	EndTime   int64
 }
 
 func DefaultInstanceNotice() InstanceNotice {
-	return InstanceNotice{
-		Level: InstanceNoticeLevelInfo,
-	}
-}
-
-func IsValidInstanceNoticeLevel(level string) bool {
-	switch level {
-	case InstanceNoticeLevelInfo, InstanceNoticeLevelSuccess, InstanceNoticeLevelWarning, InstanceNoticeLevelDanger:
-		return true
-	default:
-		return false
-	}
-}
-
-func (n *InstanceNotice) Normalize() {
-	if !IsValidInstanceNoticeLevel(n.Level) {
-		n.Level = InstanceNoticeLevelInfo
-	}
+	return InstanceNotice{}
 }
 
 func (n *InstanceNotice) IsActive(now int64) bool {
@@ -105,9 +80,7 @@ func (n *InstanceNotice) IsActive(now int64) bool {
 }
 
 func GetInstanceNotice(ctx context.Context) InstanceNotice {
-	notice := Config().InstanceNotice.Banner.Value(ctx)
-	notice.Normalize()
-	return notice
+	return Config().InstanceNotice.Banner.Value(ctx)
 }
 
 type InstanceNoticeStruct struct {
diff --git a/options/locale/locale_en-US.json b/options/locale/locale_en-US.json
index dd89976193..536616a54d 100644
--- a/options/locale/locale_en-US.json
+++ b/options/locale/locale_en-US.json
@@ -3283,11 +3283,6 @@
   "admin.config.instance_notice.message": "Message",
   "admin.config.instance_notice.message_placeholder": "This message supports Markdown.",
   "admin.config.instance_notice.message_required": "Message is required when the banner is enabled.",
-  "admin.config.instance_notice.level": "Level",
-  "admin.config.instance_notice.level.info": "Info",
-  "admin.config.instance_notice.level.success": "Success",
-  "admin.config.instance_notice.level.warning": "Warning",
-  "admin.config.instance_notice.level.danger": "Danger",
   "admin.config.instance_notice.message_too_long": "Message must be at most %d characters.",
   "admin.config.instance_notice.start_time": "Start time",
   "admin.config.instance_notice.end_time": "End time",
diff --git a/routers/web/admin/config.go b/routers/web/admin/config.go
index b81af78ae6..05d6a110ff 100644
--- a/routers/web/admin/config.go
+++ b/routers/web/admin/config.go
@@ -213,7 +213,6 @@ func parseDatetimeLocalValue(raw string) (int64, error) {
 
 func SetInstanceNotice(ctx *context.Context) {
 	saveInstanceNotice := func(instanceNotice setting.InstanceNotice) {
-		instanceNotice.Normalize()
 		marshaled, err := json.Marshal(instanceNotice)
 		if err != nil {
 			ctx.ServerError("Marshal", err)
@@ -240,7 +239,6 @@ func SetInstanceNotice(ctx *context.Context) {
 
 	enabled := ctx.FormBool("enabled")
 	message := strings.TrimSpace(ctx.FormString("message"))
-	level := strings.TrimSpace(ctx.FormString("level"))
 	startTime, err := parseDatetimeLocalValue(strings.TrimSpace(ctx.FormString("start_time")))
 	if err != nil {
 		ctx.Flash.Error(ctx.Tr("admin.config.instance_notice.invalid_time"))
@@ -253,9 +251,6 @@ func SetInstanceNotice(ctx *context.Context) {
 		ctx.Redirect(setting.AppSubURL + "/-/admin/config#instance-notice")
 		return
 	}
-	if !setting.IsValidInstanceNoticeLevel(level) {
-		level = setting.InstanceNoticeLevelInfo
-	}
 	if enabled && message == "" {
 		ctx.Flash.Error(ctx.Tr("admin.config.instance_notice.message_required"))
 		ctx.Redirect(setting.AppSubURL + "/-/admin/config#instance-notice")
@@ -275,7 +270,6 @@ func SetInstanceNotice(ctx *context.Context) {
 	instanceNotice := setting.InstanceNotice{
 		Enabled:   enabled,
 		Message:   message,
-		Level:     level,
 		StartTime: startTime,
 		EndTime:   endTime,
 	}
diff --git a/tests/integration/instance_notice_test.go b/tests/integration/instance_notice_test.go
index 1d8f4941fc..e9b3b41c0a 100644
--- a/tests/integration/instance_notice_test.go
+++ b/tests/integration/instance_notice_test.go
@@ -26,7 +26,6 @@ func TestInstanceNoticeVisibility(t *testing.T) {
 	setInstanceNoticeForTest(t, setting.InstanceNotice{
 		Enabled: true,
 		Message: "Planned **upgrade** in progress.",
-		Level:   setting.InstanceNoticeLevelWarning,
 	})
 
 	t.Run("AnonymousUserSeesBanner", func(t *testing.T) {
@@ -60,7 +59,6 @@ func TestInstanceNoticeTimeWindow(t *testing.T) {
 	setInstanceNoticeForTest(t, setting.InstanceNotice{
 		Enabled:   true,
 		Message:   "Future banner",
-		Level:     setting.InstanceNoticeLevelInfo,
 		StartTime: now + 3600,
 		EndTime:   now + 7200,
 	})
@@ -71,7 +69,6 @@ func TestInstanceNoticeTimeWindow(t *testing.T) {
 	setInstanceNoticeForTest(t, setting.InstanceNotice{
 		Enabled:   true,
 		Message:   "Expired banner",
-		Level:     setting.InstanceNoticeLevelInfo,
 		StartTime: now - 7200,
 		EndTime:   now - 3600,
 	})
@@ -88,25 +85,21 @@ func TestInstanceNoticeAdminCRUD(t *testing.T) {
 	req := NewRequestWithValues(t, "POST", "/-/admin/config/instance_notice", map[string]string{
 		"enabled": "true",
 		"message": "Admin set banner",
-		"level":   "danger",
 	})
 	adminSession.MakeRequest(t, req, http.StatusSeeOther)
 
 	notice := setting.GetInstanceNotice(t.Context())
 	assert.True(t, notice.Enabled)
 	assert.Equal(t, "Admin set banner", notice.Message)
-	assert.Equal(t, setting.InstanceNoticeLevelDanger, notice.Level)
 
 	req = NewRequestWithValues(t, "POST", "/-/admin/config/instance_notice", map[string]string{
 		"enabled": "true",
 		"message": strings.Repeat("a", 2001),
-		"level":   "warning",
 	})
 	adminSession.MakeRequest(t, req, http.StatusSeeOther)
 
 	notice = setting.GetInstanceNotice(t.Context())
 	assert.Equal(t, "Admin set banner", notice.Message)
-	assert.Equal(t, setting.InstanceNoticeLevelDanger, notice.Level)
 
 	req = NewRequestWithValues(t, "POST", "/-/admin/config/instance_notice", map[string]string{
 		"action": "delete",