diff --git a/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Application.Contracts/LINGYUN/Abp/Saas/Tenants/Dto/TenantConnectionStringCreateOrUpdate.cs b/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Application.Contracts/LINGYUN/Abp/Saas/Tenants/Dto/TenantConnectionStringSetInput.cs
similarity index 87%
rename from aspnet-core/modules/saas/LINGYUN.Abp.Saas.Application.Contracts/LINGYUN/Abp/Saas/Tenants/Dto/TenantConnectionStringCreateOrUpdate.cs
rename to aspnet-core/modules/saas/LINGYUN.Abp.Saas.Application.Contracts/LINGYUN/Abp/Saas/Tenants/Dto/TenantConnectionStringSetInput.cs
index 39db85f8a..691867cd5 100644
--- a/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Application.Contracts/LINGYUN/Abp/Saas/Tenants/Dto/TenantConnectionStringCreateOrUpdate.cs
+++ b/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Application.Contracts/LINGYUN/Abp/Saas/Tenants/Dto/TenantConnectionStringSetInput.cs
@@ -1,15 +1,15 @@
-using System.ComponentModel.DataAnnotations;
-using Volo.Abp.Validation;
-
-namespace LINGYUN.Abp.Saas.Tenants;
-
-public class TenantConnectionStringCreateOrUpdate
-{
-    [Required]
-    [DynamicStringLength(typeof(TenantConnectionStringConsts), nameof(TenantConnectionStringConsts.MaxNameLength))]
-    public string Name { get; set; }
-
-    [Required]
-    [DynamicStringLength(typeof(TenantConnectionStringConsts), nameof(TenantConnectionStringConsts.MaxValueLength))]
-    public string Value { get; set; }
-}
+using System.ComponentModel.DataAnnotations;
+using Volo.Abp.Validation;
+
+namespace LINGYUN.Abp.Saas.Tenants;
+
+public class TenantConnectionStringSetInput
+{
+    [Required]
+    [DynamicStringLength(typeof(TenantConnectionStringConsts), nameof(TenantConnectionStringConsts.MaxNameLength))]
+    public string Name { get; set; }
+
+    [Required]
+    [DynamicStringLength(typeof(TenantConnectionStringConsts), nameof(TenantConnectionStringConsts.MaxValueLength))]
+    public string Value { get; set; }
+}
diff --git a/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Application.Contracts/LINGYUN/Abp/Saas/Tenants/Dto/TenantCreateDto.cs b/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Application.Contracts/LINGYUN/Abp/Saas/Tenants/Dto/TenantCreateDto.cs
index 7799a8181..ff7400f47 100644
--- a/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Application.Contracts/LINGYUN/Abp/Saas/Tenants/Dto/TenantCreateDto.cs
+++ b/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Application.Contracts/LINGYUN/Abp/Saas/Tenants/Dto/TenantCreateDto.cs
@@ -1,5 +1,11 @@
-using System.Collections.Generic;
+using LINGYUN.Abp.Saas.Localization;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Localization;
+using System;
+using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using Volo.Abp.Validation;
 
 namespace LINGYUN.Abp.Saas.Tenants;
 
@@ -22,10 +28,31 @@ public class TenantCreateDto : TenantCreateOrUpdateBase
     /// <summary>
     /// 默认数据库连接字符串
     /// </summary>
+    [DynamicStringLength(typeof(TenantConnectionStringConsts), nameof(TenantConnectionStringConsts.MaxValueLength))]
     public string DefaultConnectionString { get; set; }
 
     /// <summary>
     /// 其他数据库连接
     /// </summary>
-    public Dictionary<string, string> ConnectionStrings { get; set; } = new Dictionary<string, string>();
+    public List<TenantConnectionStringSetInput> ConnectionStrings { get; set; } = new List<TenantConnectionStringSetInput>();
+
+    public override IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
+    {
+        var validationResults = base.Validate(validationContext);
+
+        if (!UseSharedDatabase && DefaultConnectionString.IsNullOrWhiteSpace())
+        {
+            var saasResource = validationContext.GetRequiredService<IStringLocalizer<AbpSaasResource>>();
+
+            var errors = new ValidationResult[1]
+            {
+                new ValidationResult(
+                    saasResource["IfUseCustomDataBaseDefaultConnectionStringIsRequiredMessage"],
+                    new string[1]{ nameof(DefaultConnectionString) })
+            };
+            return validationResults.Union(errors);
+        }
+
+        return validationResults;
+    }
 }
\ No newline at end of file
diff --git a/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Application.Contracts/LINGYUN/Abp/Saas/Tenants/ITenantAppService.cs b/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Application.Contracts/LINGYUN/Abp/Saas/Tenants/ITenantAppService.cs
index de18fb821..db5a30ad1 100644
--- a/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Application.Contracts/LINGYUN/Abp/Saas/Tenants/ITenantAppService.cs
+++ b/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Application.Contracts/LINGYUN/Abp/Saas/Tenants/ITenantAppService.cs
@@ -26,7 +26,7 @@ public interface ITenantAppService :
 
     Task<TenantConnectionStringDto> SetConnectionStringAsync(
         Guid id, 
-        TenantConnectionStringCreateOrUpdate input);
+        TenantConnectionStringSetInput input);
 
     Task DeleteConnectionStringAsync(
         Guid id,
diff --git a/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Application/LINGYUN/Abp/Saas/Tenants/TenantAppService.cs b/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Application/LINGYUN/Abp/Saas/Tenants/TenantAppService.cs
index b18b9cee6..682914293 100644
--- a/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Application/LINGYUN/Abp/Saas/Tenants/TenantAppService.cs
+++ b/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Application/LINGYUN/Abp/Saas/Tenants/TenantAppService.cs
@@ -83,18 +83,18 @@ public class TenantAppService : AbpSaasAppServiceBase, ITenantAppService
         tenant.SetDisableTime(input.DisableTime);
         input.MapExtraPropertiesTo(tenant);
 
-        if (!input.UseSharedDatabase && !input.DefaultConnectionString.IsNullOrWhiteSpace())
+        if (!input.UseSharedDatabase)
         {
             await CheckConnectionString(input.DefaultConnectionString);
             tenant.SetDefaultConnectionString(input.DefaultConnectionString);
-        }
 
-        if (input.ConnectionStrings.Any())
-        {
-            foreach (var connectionString in input.ConnectionStrings)
+            if (input.ConnectionStrings.Any())
             {
-                await CheckConnectionString(connectionString.Value, connectionString.Key);
-                tenant.SetConnectionString(connectionString.Key, connectionString.Value);
+                foreach (var connectionString in input.ConnectionStrings)
+                {
+                    await CheckConnectionString(connectionString.Value, connectionString.Name);
+                    tenant.SetConnectionString(connectionString.Name, connectionString.Value);
+                }
             }
         }
 
@@ -213,7 +213,7 @@ public class TenantAppService : AbpSaasAppServiceBase, ITenantAppService
     }
 
     [Authorize(AbpSaasPermissions.Tenants.ManageConnectionStrings)]
-    public async virtual Task<TenantConnectionStringDto> SetConnectionStringAsync(Guid id, TenantConnectionStringCreateOrUpdate input)
+    public async virtual Task<TenantConnectionStringDto> SetConnectionStringAsync(Guid id, TenantConnectionStringSetInput input)
     {
         await CheckConnectionString(input.Value, input.Name);
 
diff --git a/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Domain.Shared/LINGYUN/Abp/Saas/Localization/Resources/en.json b/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Domain.Shared/LINGYUN/Abp/Saas/Localization/Resources/en.json
index e6cc69449..d61e2638c 100644
--- a/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Domain.Shared/LINGYUN/Abp/Saas/Localization/Resources/en.json
+++ b/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Domain.Shared/LINGYUN/Abp/Saas/Localization/Resources/en.json
@@ -50,6 +50,7 @@
     "Features:ExpiredRecoveryTimeDesc": "If the resource expiration is not handled for a long time, tenant resources will be reclaimed",
     "UnActived": "UnActived",
     "RecycleStrategy:Reserve": "Reserve",
-    "RecycleStrategy:Recycle": "Recycle"
+    "RecycleStrategy:Recycle": "Recycle",
+    "IfUseCustomDataBaseDefaultConnectionStringIsRequiredMessage": "If you use a custom database, the default connection string must be required!"
   }
 }
\ No newline at end of file
diff --git a/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Domain.Shared/LINGYUN/Abp/Saas/Localization/Resources/zh-Hans.json b/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Domain.Shared/LINGYUN/Abp/Saas/Localization/Resources/zh-Hans.json
index 684aa2ec5..8bdfc083d 100644
--- a/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Domain.Shared/LINGYUN/Abp/Saas/Localization/Resources/zh-Hans.json
+++ b/aspnet-core/modules/saas/LINGYUN.Abp.Saas.Domain.Shared/LINGYUN/Abp/Saas/Localization/Resources/zh-Hans.json
@@ -50,6 +50,7 @@
     "Features:ExpiredRecoveryTimeDesc": "当资源超期多久没有处理, 将回收租户资源",
     "UnActived": "未启用",
     "RecycleStrategy:Reserve": "保留",
-    "RecycleStrategy:Recycle": "回收"
+    "RecycleStrategy:Recycle": "回收",
+    "IfUseCustomDataBaseDefaultConnectionStringIsRequiredMessage":  "如果使用自定义数据库,默认连接字符串必须输入!"
   }
 }
\ No newline at end of file
diff --git a/aspnet-core/modules/saas/LINGYUN.Abp.Saas.EntityFrameworkCore/LINGYUN/Abp/Saas/EntityFrameworkCore/EfCoreTenantRepository.cs b/aspnet-core/modules/saas/LINGYUN.Abp.Saas.EntityFrameworkCore/LINGYUN/Abp/Saas/EntityFrameworkCore/EfCoreTenantRepository.cs
index 5e96affb5..0bbed3fd4 100644
--- a/aspnet-core/modules/saas/LINGYUN.Abp.Saas.EntityFrameworkCore/LINGYUN/Abp/Saas/EntityFrameworkCore/EfCoreTenantRepository.cs
+++ b/aspnet-core/modules/saas/LINGYUN.Abp.Saas.EntityFrameworkCore/LINGYUN/Abp/Saas/EntityFrameworkCore/EfCoreTenantRepository.cs
@@ -70,7 +70,7 @@ public class EfCoreTenantRepository : EfCoreRepository<ISaasDbContext, Tenant, G
             var queryable = from tenant in tenantDbSet
                     join edition in editionDbSet on tenant.EditionId equals edition.Id into eg
                     from e in eg.DefaultIfEmpty()
-                    where tenant.Name.Equals(name)
+                    where tenant.Name.Equals(name) || tenant.NormalizedName.Equals(name)
                     orderby tenant.Id
                     select new
                     {
@@ -104,7 +104,7 @@ public class EfCoreTenantRepository : EfCoreRepository<ISaasDbContext, Tenant, G
             var queryable = from tenant in tenantDbSet
                             join edition in editionDbSet on tenant.EditionId equals edition.Id into eg
                             from e in eg.DefaultIfEmpty()
-                            where tenant.Name.Equals(name)
+                            where tenant.Name.Equals(name) || tenant.NormalizedName.Equals(name)
                             orderby tenant.Id
                             select new
                             {
diff --git a/aspnet-core/modules/saas/LINGYUN.Abp.Saas.HttpApi/LINGYUN/Abp/Saas/Tenants/TenantController.cs b/aspnet-core/modules/saas/LINGYUN.Abp.Saas.HttpApi/LINGYUN/Abp/Saas/Tenants/TenantController.cs
index 278e9dbd3..9e29feaa9 100644
--- a/aspnet-core/modules/saas/LINGYUN.Abp.Saas.HttpApi/LINGYUN/Abp/Saas/Tenants/TenantController.cs
+++ b/aspnet-core/modules/saas/LINGYUN.Abp.Saas.HttpApi/LINGYUN/Abp/Saas/Tenants/TenantController.cs
@@ -83,7 +83,7 @@ public class TenantController : AbpSaasControllerBase, ITenantAppService
     [HttpPut]
     [Route("{id}/connection-string")]
     [Authorize(AbpSaasPermissions.Tenants.ManageConnectionStrings)]
-    public virtual Task<TenantConnectionStringDto> SetConnectionStringAsync(Guid id, TenantConnectionStringCreateOrUpdate input)
+    public virtual Task<TenantConnectionStringDto> SetConnectionStringAsync(Guid id, TenantConnectionStringSetInput input)
     {
         return TenantAppService.SetConnectionStringAsync(id, input);
     }