diff --git a/framework/src/Volo.Abp.FluentValidation/Volo/Abp/FluentValidation/AbpFluentValidationConventionalRegistrar.cs b/framework/src/Volo.Abp.FluentValidation/Volo/Abp/FluentValidation/AbpFluentValidationConventionalRegistrar.cs
index c0633d9cc9..b4f56edc7d 100644
--- a/framework/src/Volo.Abp.FluentValidation/Volo/Abp/FluentValidation/AbpFluentValidationConventionalRegistrar.cs
+++ b/framework/src/Volo.Abp.FluentValidation/Volo/Abp/FluentValidation/AbpFluentValidationConventionalRegistrar.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using FluentValidation;
 using Microsoft.Extensions.DependencyInjection;
 using Volo.Abp.DependencyInjection;
@@ -10,7 +11,8 @@ namespace Volo.Abp.FluentValidation
     {
         protected override bool IsConventionalRegistrationDisabled(Type type)
         {
-            return !typeof(IValidator).IsAssignableFrom(type) || base.IsConventionalRegistrationDisabled(type);
+            return !type.GetInterfaces().Any(x => x.IsGenericType && x.GetGenericTypeDefinition() == typeof(IValidator<>)) ||
+                   base.IsConventionalRegistrationDisabled(type);
         }
 
         protected override ServiceLifetime? GetDefaultLifeTimeOrNull(Type type)
diff --git a/framework/src/Volo.Abp.MongoDB/Volo/Abp/MongoDB/DependencyInjection/AbpMongoDbConventionalRegistrar.cs b/framework/src/Volo.Abp.MongoDB/Volo/Abp/MongoDB/DependencyInjection/AbpMongoDbConventionalRegistrar.cs
index 4e4096ec36..4d10d7c030 100644
--- a/framework/src/Volo.Abp.MongoDB/Volo/Abp/MongoDB/DependencyInjection/AbpMongoDbConventionalRegistrar.cs
+++ b/framework/src/Volo.Abp.MongoDB/Volo/Abp/MongoDB/DependencyInjection/AbpMongoDbConventionalRegistrar.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using Microsoft.Extensions.DependencyInjection;
 using Volo.Abp.DependencyInjection;
 
@@ -11,6 +12,14 @@ namespace Volo.Abp.MongoDB.DependencyInjection
             return !typeof(IAbpMongoDbContext).IsAssignableFrom(type) || type == typeof(AbpMongoDbContext) || base.IsConventionalRegistrationDisabled(type);
         }
 
+        protected override List<Type> GetExposedServiceTypes(Type type)
+        {
+            return new List<Type>()
+            {
+                typeof(IAbpMongoDbContext)
+            };
+        }
+
         protected override ServiceLifetime? GetDefaultLifeTimeOrNull(Type type)
         {
             return ServiceLifetime.Transient;
diff --git a/framework/test/Volo.Abp.MongoDB.Tests/Volo/Abp/MongoDB/AbpMongoDbConventionalRegistrar_Tests.cs b/framework/test/Volo.Abp.MongoDB.Tests/Volo/Abp/MongoDB/AbpMongoDbConventionalRegistrar_Tests.cs
new file mode 100644
index 0000000000..61adb0c8a5
--- /dev/null
+++ b/framework/test/Volo.Abp.MongoDB.Tests/Volo/Abp/MongoDB/AbpMongoDbConventionalRegistrar_Tests.cs
@@ -0,0 +1,24 @@
+using Microsoft.Extensions.DependencyInjection;
+using Shouldly;
+using Volo.Abp.MongoDB.TestApp.FourthContext;
+using Volo.Abp.MongoDB.TestApp.SecondContext;
+using Volo.Abp.MongoDB.TestApp.ThirdDbContext;
+using Volo.Abp.TestApp.MongoDB;
+using Xunit;
+
+namespace Volo.Abp.MongoDB
+{
+    [Collection(MongoTestCollection.Name)]
+    public class AbpMongoDbConventionalRegistrar_Tests : MongoDbTestBase
+    {
+        [Fact]
+        public void All_AbpMongoDbContext_Should_Exposed_IAbpMongoDbContext_Service()
+        {
+            var abpMongoDbContext = ServiceProvider.GetServices<IAbpMongoDbContext>();
+            abpMongoDbContext.ShouldContain(x => x is TestAppMongoDbContext);
+            abpMongoDbContext.ShouldContain(x => x is SecondDbContext);
+            abpMongoDbContext.ShouldContain(x => x is ThirdDbContext);
+            abpMongoDbContext.ShouldContain(x => x is FourthDbContext);
+        }
+    }
+}