diff --git a/aspnet-core/modules/common/LINGYUN.Abp.Notifications.Core/LINGYUN/Abp/Notifications/NotificationType.cs b/aspnet-core/modules/common/LINGYUN.Abp.Notifications.Core/LINGYUN/Abp/Notifications/NotificationType.cs
index f13b34542..d9ab166f7 100644
--- a/aspnet-core/modules/common/LINGYUN.Abp.Notifications.Core/LINGYUN/Abp/Notifications/NotificationType.cs
+++ b/aspnet-core/modules/common/LINGYUN.Abp.Notifications.Core/LINGYUN/Abp/Notifications/NotificationType.cs
@@ -6,15 +6,15 @@
     public enum NotificationType
     {
         /// <summary>
-        /// 应用（对应租户）
+        /// 应用（仅对当前租户）
         /// </summary>
         Application = 0,
         /// <summary>
-        /// 系统（对应宿主）
+        /// 系统通知（全局发布）
         /// </summary>
         System = 10,
         /// <summary>
-        /// 用户（对应用户）
+        /// 用户（对应用户,受租户控制）
         /// </summary>
         User = 20
     }
diff --git a/aspnet-core/services/LY.MicroService.RealtimeMessage.HttpApi.Host/EventBus/Distributed/NotificationEventHandler.cs b/aspnet-core/services/LY.MicroService.RealtimeMessage.HttpApi.Host/EventBus/Distributed/NotificationEventHandler.cs
index d2f45cf90..a891482ac 100644
--- a/aspnet-core/services/LY.MicroService.RealtimeMessage.HttpApi.Host/EventBus/Distributed/NotificationEventHandler.cs
+++ b/aspnet-core/services/LY.MicroService.RealtimeMessage.HttpApi.Host/EventBus/Distributed/NotificationEventHandler.cs
@@ -1,5 +1,6 @@
 using LINGYUN.Abp.Notifications;
 using LY.MicroService.RealtimeMessage.BackgroundJobs;
+using LY.MicroService.RealtimeMessage.MultiTenancy;
 using Microsoft.Extensions.Localization;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Logging.Abstractions;
@@ -43,6 +44,10 @@ namespace LY.MicroService.RealtimeMessage.EventBus.Distributed
         /// </summary>
         protected ICurrentTenant CurrentTenant { get; }
         /// <summary>
+        /// Reference to <see cref="ITenantConfigurationCache"/>.
+        /// </summary>
+        protected ITenantConfigurationCache TenantConfigurationCache { get; }
+        /// <summary>
         /// Reference to <see cref="IJsonSerializer"/>.
         /// </summary>
         protected IJsonSerializer JsonSerializer { get; }
@@ -80,6 +85,7 @@ namespace LY.MicroService.RealtimeMessage.EventBus.Distributed
         /// </summary>
         public NotificationEventHandler(
             ICurrentTenant currentTenant,
+            ITenantConfigurationCache tenantConfigurationCache,
             IJsonSerializer jsonSerializer,
             ITemplateRenderer templateRenderer,
             IBackgroundJobManager backgroundJobManager,
@@ -91,6 +97,7 @@ namespace LY.MicroService.RealtimeMessage.EventBus.Distributed
             INotificationPublishProviderManager notificationPublishProviderManager)
         {
             Options = options.Value;
+            TenantConfigurationCache = tenantConfigurationCache;
             CurrentTenant = currentTenant;
             JsonSerializer = jsonSerializer;
             TemplateRenderer = templateRenderer;
@@ -107,18 +114,38 @@ namespace LY.MicroService.RealtimeMessage.EventBus.Distributed
         [UnitOfWork]
         public async virtual Task HandleEventAsync(NotificationEto<NotificationTemplate> eventData)
         {
-            using (CurrentTenant.Change(eventData.TenantId))
+            var notification = await NotificationDefinitionManager.GetOrNullAsync(eventData.Name);
+            if (notification == null)
+            {
+                return;
+            }
+
+            if (notification.NotificationType == NotificationType.System)
             {
-                var notification = await NotificationDefinitionManager.GetOrNullAsync(eventData.Name);
-                if (notification == null)
+                var allActiveTenants = await TenantConfigurationCache.GetTenantsAsync();
+
+                foreach (var activeTenant in allActiveTenants)
                 {
-                    return;
+                    await SendToTenantAsync(activeTenant.Id, notification, eventData);
                 }
+            }
+            else
+            {
+                await SendToTenantAsync(eventData.TenantId, notification, eventData);
+            }
+        }
 
+        protected async virtual Task SendToTenantAsync(
+            Guid? tenantId, 
+            NotificationDefinition notification,
+            NotificationEto<NotificationTemplate> eventData)
+        {
+            using (CurrentTenant.Change(tenantId))
+            {
                 var notificationInfo = new NotificationInfo
                 {
                     Name = notification.Name,
-                    TenantId = eventData.TenantId,
+                    TenantId = tenantId,
                     Severity = eventData.Severity,
                     Type = notification.NotificationType,
                     CreationTime = eventData.CreationTime,
@@ -144,7 +171,7 @@ namespace LY.MicroService.RealtimeMessage.EventBus.Distributed
                 var notificationData = new NotificationData();
                 notificationData.WriteStandardData(
                     title: title,
-                    message: message, 
+                    message: message,
                     createTime: eventData.CreationTime,
                     formUser: eventData.Data.FormUser);
                 notificationData.ExtraProperties.AddIfNotContains(eventData.Data.ExtraProperties);
@@ -175,14 +202,34 @@ namespace LY.MicroService.RealtimeMessage.EventBus.Distributed
         [UnitOfWork]
         public async virtual Task HandleEventAsync(NotificationEto<NotificationData> eventData)
         {
-            using (CurrentTenant.Change(eventData.TenantId))
+            var notification = await NotificationDefinitionManager.GetOrNullAsync(eventData.Name);
+            if (notification == null)
+            {
+                return;
+            }
+
+            if (notification.NotificationType == NotificationType.System)
             {
-                var notification = await NotificationDefinitionManager.GetOrNullAsync(eventData.Name);
-                if (notification == null)
+                var allActiveTenants = await TenantConfigurationCache.GetTenantsAsync();
+
+                foreach (var activeTenant in allActiveTenants)
                 {
-                    return;
+                    await SendToTenantAsync(activeTenant.Id, notification, eventData);
                 }
+            }
+            else
+            {
+                await SendToTenantAsync(eventData.TenantId, notification, eventData);
+            }
+        }
 
+        protected async virtual Task SendToTenantAsync(
+            Guid? tenantId,
+            NotificationDefinition notification,
+            NotificationEto<NotificationData> eventData)
+        {
+            using (CurrentTenant.Change(tenantId))
+            {
                 var notificationInfo = new NotificationInfo
                 {
                     Name = notification.Name,
@@ -190,7 +237,7 @@ namespace LY.MicroService.RealtimeMessage.EventBus.Distributed
                     Data = eventData.Data,
                     Severity = eventData.Severity,
                     Lifetime = notification.NotificationLifetime,
-                    TenantId = eventData.TenantId,
+                    TenantId = tenantId,
                     Type = notification.NotificationType
                 };
                 notificationInfo.SetId(eventData.Id);
diff --git a/aspnet-core/services/LY.MicroService.RealtimeMessage.HttpApi.Host/MultiTenancy/ITenantConfigurationCache.cs b/aspnet-core/services/LY.MicroService.RealtimeMessage.HttpApi.Host/MultiTenancy/ITenantConfigurationCache.cs
new file mode 100644
index 000000000..edc99602b
--- /dev/null
+++ b/aspnet-core/services/LY.MicroService.RealtimeMessage.HttpApi.Host/MultiTenancy/ITenantConfigurationCache.cs
@@ -0,0 +1,10 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using Volo.Abp.MultiTenancy;
+
+namespace LY.MicroService.RealtimeMessage.MultiTenancy;
+
+public interface ITenantConfigurationCache
+{
+    Task<List<TenantConfiguration>> GetTenantsAsync();
+}
diff --git a/aspnet-core/services/LY.MicroService.RealtimeMessage.HttpApi.Host/MultiTenancy/TenantConfigurationCache.cs b/aspnet-core/services/LY.MicroService.RealtimeMessage.HttpApi.Host/MultiTenancy/TenantConfigurationCache.cs
new file mode 100644
index 000000000..d6f3dbb55
--- /dev/null
+++ b/aspnet-core/services/LY.MicroService.RealtimeMessage.HttpApi.Host/MultiTenancy/TenantConfigurationCache.cs
@@ -0,0 +1,49 @@
+using LINGYUN.Abp.Saas.Tenants;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Volo.Abp.Caching;
+using Volo.Abp.DependencyInjection;
+using Volo.Abp.MultiTenancy;
+
+namespace LY.MicroService.RealtimeMessage.MultiTenancy;
+
+public class TenantConfigurationCache : ITenantConfigurationCache, ITransientDependency
+{
+    protected ITenantRepository TenantRepository { get; }
+    protected IDistributedCache<TenantConfigurationCacheItem> TenantCache { get; }
+
+    public TenantConfigurationCache(
+        ITenantRepository tenantRepository, 
+        IDistributedCache<TenantConfigurationCacheItem> tenantCache)
+    {
+        TenantRepository = tenantRepository;
+        TenantCache = tenantCache;
+    }
+
+    public async virtual Task<List<TenantConfiguration>> GetTenantsAsync()
+    {
+        return (await GetForCacheItemAsync()).Tenants;
+    }
+
+    protected async virtual Task<TenantConfigurationCacheItem> GetForCacheItemAsync()
+    {
+        var cacheKey = "_Abp_Tenant_Configuration";
+        var cacheItem = await TenantCache.GetAsync(cacheKey);
+        if (cacheItem == null)
+        {
+            var allActiveTenants = await TenantRepository.GetListAsync();
+
+            cacheItem = new TenantConfigurationCacheItem(
+                allActiveTenants.Select(t =>
+                    new TenantConfiguration(t.Id, t.Name)
+                    {
+                        IsActive = t.IsActive,
+                    }).ToList());
+
+            await TenantCache.SetAsync(cacheKey, cacheItem);
+        }
+
+        return cacheItem;
+    }
+}
diff --git a/aspnet-core/services/LY.MicroService.RealtimeMessage.HttpApi.Host/MultiTenancy/TenantConfigurationCacheItem.cs b/aspnet-core/services/LY.MicroService.RealtimeMessage.HttpApi.Host/MultiTenancy/TenantConfigurationCacheItem.cs
new file mode 100644
index 000000000..7c2b77e2c
--- /dev/null
+++ b/aspnet-core/services/LY.MicroService.RealtimeMessage.HttpApi.Host/MultiTenancy/TenantConfigurationCacheItem.cs
@@ -0,0 +1,20 @@
+using System.Collections.Generic;
+using Volo.Abp.MultiTenancy;
+
+namespace LY.MicroService.RealtimeMessage.MultiTenancy;
+
+[IgnoreMultiTenancy]
+public class TenantConfigurationCacheItem
+{
+    public List<TenantConfiguration> Tenants { get; set; }
+
+    public TenantConfigurationCacheItem()
+    {
+        Tenants = new List<TenantConfiguration>();
+    }
+
+    public TenantConfigurationCacheItem(List<TenantConfiguration> tenants)
+    {
+        Tenants = tenants;
+    }
+}