diff --git a/XCode/Code/EntityBuilder.cs b/XCode/Code/EntityBuilder.cs
index f1910cc50..54d2dcb44 100644
--- a/XCode/Code/EntityBuilder.cs
+++ b/XCode/Code/EntityBuilder.cs
@@ -588,6 +588,7 @@ public override void Clear()
         //}
 
         var bs = baseClass?.Split(',').Select(e => e.Trim()).ToList() ?? [];
+        var hasTenantScope = bs.Any(e => e.EqualIgnoreCase("ITenantScope"));
 
         // 数据类的基类只有接口，业务类基类则比较复杂
         var name = "";
@@ -599,6 +600,10 @@ public override void Clear()
             if (name.IsNullOrEmpty()) name = "Entity";
 
             name = $"{name}<{ClassName}>";
+
+            // 多租户业务类实现租户作用域接口，便于 TenantInterceptor 生效
+            if (Table.Columns.Any(e => e.Name.EqualIgnoreCase("TenantId")) && !hasTenantScope)
+                name += ", ITenantScope";
         }
         else
         {
diff --git "a/XUnitTest.XCode/Code/Entity/\347\247\237\346\210\267\345\205\263\347\263\273.Biz.cs" "b/XUnitTest.XCode/Code/Entity/\347\247\237\346\210\267\345\205\263\347\263\273.Biz.cs"
index d415590b4..f059c8eb6 100644
--- "a/XUnitTest.XCode/Code/Entity/\347\247\237\346\210\267\345\205\263\347\263\273.Biz.cs"
+++ "b/XUnitTest.XCode/Code/Entity/\347\247\237\346\210\267\345\205\263\347\263\273.Biz.cs"
@@ -26,7 +26,7 @@
 
 namespace XCode.Membership666;
 
-public partial class TenantUser : Entity<TenantUser>
+public partial class TenantUser : Entity<TenantUser>, ITenantScope
 {
     #region 对象操作
     // 控制最大缓存数量，Find/FindAll查询方法在表行数小于该值时走实体缓存
diff --git "a/XUnitTest.XCode/Code/Entity/\350\247\222\350\211\262.Biz.cs" "b/XUnitTest.XCode/Code/Entity/\350\247\222\350\211\262.Biz.cs"
index 81aef644e..2c01cff8b 100644
--- "a/XUnitTest.XCode/Code/Entity/\350\247\222\350\211\262.Biz.cs"
+++ "b/XUnitTest.XCode/Code/Entity/\350\247\222\350\211\262.Biz.cs"
@@ -26,7 +26,7 @@
 
 namespace XCode.Membership666;
 
-public partial class Role : Entity<Role>
+public partial class Role : Entity<Role>, ITenantScope
 {
     #region 对象操作
     // 控制最大缓存数量，Find/FindAll查询方法在表行数小于该值时走实体缓存
diff --git "a/XUnitTest.XCode/Code/Entity/\351\203\250\351\227\250.Biz.cs" "b/XUnitTest.XCode/Code/Entity/\351\203\250\351\227\250.Biz.cs"
index 16c2f25f4..6096800b9 100644
--- "a/XUnitTest.XCode/Code/Entity/\351\203\250\351\227\250.Biz.cs"
+++ "b/XUnitTest.XCode/Code/Entity/\351\203\250\351\227\250.Biz.cs"
@@ -26,7 +26,7 @@
 
 namespace XCode.Membership666;
 
-public partial class Department : Entity<Department>
+public partial class Department : Entity<Department>, ITenantScope
 {
     #region 对象操作
     // 控制最大缓存数量，Find/FindAll查询方法在表行数小于该值时走实体缓存
diff --git a/XUnitTest.XCode/Code/EntityBuilderTests.cs b/XUnitTest.XCode/Code/EntityBuilderTests.cs
index 0dab41b40..cee1322e3 100644
--- a/XUnitTest.XCode/Code/EntityBuilderTests.cs
+++ b/XUnitTest.XCode/Code/EntityBuilderTests.cs
@@ -11,6 +11,7 @@ namespace XUnitTest.XCode.Code;
 
 public class EntityBuilderTests
 {
+    private IList<IDataTable> _tables;
     private IDataTable _table;
     private IDataTable _tableLog;
     private BuilderOption _option;
@@ -18,9 +19,9 @@ public class EntityBuilderTests
     public EntityBuilderTests()
     {
         _option = new BuilderOption();
-        var tables = ClassBuilder.LoadModels(@"..\..\XCode\Membership\Member.xml", _option, out _);
-        _table = tables.FirstOrDefault(e => e.Name == "User");
-        _tableLog = tables.FirstOrDefault(e => e.Name == "Log");
+        _tables = ClassBuilder.LoadModels(@"..\..\XCode\Membership\Member.xml", _option, out _);
+        _table = _tables.FirstOrDefault(e => e.Name == "User");
+        _tableLog = _tables.FirstOrDefault(e => e.Name == "Log");
     }
 
     private String ReadTarget(String file, String text)
@@ -383,6 +384,45 @@ public void BuildLog()
         }
     }
 
+    [Fact]
+    public void BusinessTenantTable_ImplementsITenantScope()
+    {
+        var option = new EntityBuilderOption
+        {
+            ConnName = "Test",
+            Namespace = "Test",
+            Nullable = true,
+        };
+
+        var table = _tables.First(e => e.Name == "Role");
+        var builder = new EntityBuilder
+        {
+            Table = table,
+            AllTables = _tables,
+            Option = option,
+            Business = true,
+        };
+
+        builder.Execute();
+        var code = builder.ToString();
+
+        Assert.Contains("public partial class Role : Entity<Role>, ITenantScope", code);
+        Assert.Contains("Meta.Interceptors.Add<TenantInterceptor>();", code);
+
+        table = _tables.First(e => e.Name == "Tenant");
+        builder = new EntityBuilder
+        {
+            Table = table,
+            AllTables = _tables,
+            Option = option,
+        };
+
+        builder.Execute();
+        code = builder.ToString();
+
+        Assert.DoesNotContain("public partial class Tenant : Entity<Tenant>, ITenantScope", code);
+    }
+
     [Fact]
     public void FixModelFile()
     {