diff --git a/SUBD_Car_rent/database/ImplementationMongoDB.cs b/SUBD_Car_rent/database/ImplementationMongoDB.cs
new file mode 100644
index 0000000..2d8a380
--- /dev/null
+++ b/SUBD_Car_rent/database/ImplementationMongoDB.cs
@@ -0,0 +1,214 @@
+using MongoDB.Driver;
+
+namespace database
+{
+	public class ImplementationMongoDB : Abstractions
+	{
+		private IMongoDatabase _database;
+		private IMongoCollection<Car> _carCollection;
+		private IMongoCollection<Client> _clientCollection;
+		private IMongoCollection<Rental> _rentalCollection;
+		private IMongoCollection<CarModel> _carModelCollection;
+		private IMongoCollection<Branch> _branchCollection;
+		private IMongoCollection<Status> _statusCollection;
+		private IMongoCollection<BodyType> _bodyTypeCollection;
+
+		public ImplementationMongoDB()
+		{
+			var client = new MongoClient("mongodb://localhost:27017");
+			_database = client.GetDatabase("car_rent");
+
+			_carCollection = _database.GetCollection<Car>("car");
+			_clientCollection = _database.GetCollection<Client>("client");
+			_rentalCollection = _database.GetCollection<Rental>("rental");
+			_carModelCollection = _database.GetCollection<CarModel>("car_model");
+			_branchCollection = _database.GetCollection<Branch>("branch");
+			_statusCollection = _database.GetCollection<Status>("status");
+			_bodyTypeCollection = _database.GetCollection<BodyType>("body_type");
+		}
+
+		// CDUD операции для каждой сущности
+
+		// Car
+		public override void AddCar(Car car)
+		{
+			_carCollection.InsertOne(car);
+		}
+
+		public override List<Car> GetCars()
+		{
+			return _carCollection.Find(_ => true).ToList();
+		}
+
+		public override Car GetCarById(int id)
+		{
+			return _carCollection.Find(car => car.Id == id).FirstOrDefault();
+		}
+
+		public override void UpdateCar(Car car)
+		{
+			_carCollection.ReplaceOne(c => c.Id == car.Id, car);
+		}
+
+		public override void DeleteCar(int id)
+		{
+			_carCollection.DeleteOne(car => car.Id == id);
+		}
+
+		// Client
+		public override void AddClient(Client client)
+		{
+			_clientCollection.InsertOne(client);
+		}
+
+		public override List<Client> GetClients()
+		{
+			return _clientCollection.Find(_ => true).ToList();
+		}
+
+		public override Client GetClientById(int id)
+		{
+			return _clientCollection.Find(client => client.Id == id).FirstOrDefault();
+		}
+
+		public override void UpdateClient(Client client)
+		{
+			_clientCollection.ReplaceOne(c => c.Id == client.Id, client);
+		}
+
+		public override void DeleteClient(int id)
+		{
+			_clientCollection.DeleteOne(client => client.Id == id);
+		}
+
+		// Rental
+		public override void AddRental(Rental rental)
+		{
+			_rentalCollection.InsertOne(rental);
+		}
+
+		public override List<Rental> GetRentals()
+		{
+			return _rentalCollection.Find(_ => true).ToList();
+		}
+
+		public override Rental GetRentalById(int id)
+		{
+			return _rentalCollection.Find(rental => rental.Id == id).FirstOrDefault();
+		}
+
+		public override void UpdateRental(Rental rental)
+		{
+			_rentalCollection.ReplaceOne(r => r.Id == rental.Id, rental);
+		}
+
+		public override void DeleteRental(int id)
+		{
+			_rentalCollection.DeleteOne(rental => rental.Id == id);
+		}
+
+		// CarModel
+		public override void AddCarModel(CarModel carModel)
+		{
+			_carModelCollection.InsertOne(carModel);
+		}
+
+		public override List<CarModel> GetCarModels()
+		{
+			return _carModelCollection.Find(_ => true).ToList();
+		}
+
+		public override CarModel GetCarModelById(int id)
+		{
+			return _carModelCollection.Find(model => model.Id == id).FirstOrDefault();
+		}
+
+		public override void UpdateCarModel(CarModel carModel)
+		{
+			_carModelCollection.ReplaceOne(m => m.Id == carModel.Id, carModel);
+		}
+
+		public override void DeleteCarModel(int id)
+		{
+			_carModelCollection.DeleteOne(model => model.Id == id);
+		}
+
+		// Branch
+		public override void AddBranch(Branch branch)
+		{
+			_branchCollection.InsertOne(branch);
+		}
+
+		public override List<Branch> GetBranches()
+		{
+			return _branchCollection.Find(_ => true).ToList();
+		}
+
+		public override Branch GetBranchById(int id)
+		{
+			return _branchCollection.Find(branch => branch.Id == id).FirstOrDefault();
+		}
+
+		public override void UpdateBranch(Branch branch)
+		{
+			_branchCollection.ReplaceOne(b => b.Id == branch.Id, branch);
+		}
+
+		public override void DeleteBranch(int id)
+		{
+			_branchCollection.DeleteOne(branch => branch.Id == id);
+		}
+
+		// Status
+		public override void AddStatus(Status status)
+		{
+			_statusCollection.InsertOne(status);
+		}
+
+		public override List<Status> GetStatuses()
+		{
+			return _statusCollection.Find(_ => true).ToList();
+		}
+
+		public override Status GetStatusById(int id)
+		{
+			return _statusCollection.Find(status => status.Id == id).FirstOrDefault();
+		}
+
+		public override void UpdateStatus(Status status)
+		{
+			_statusCollection.ReplaceOne(s => s.Id == status.Id, status);
+		}
+
+		public override void DeleteStatus(int id)
+		{
+			_statusCollection.DeleteOne(status => status.Id == id);
+		}
+
+		// BodyType
+		public override void AddBodyType(BodyType bodyType)
+		{
+			_bodyTypeCollection.InsertOne(bodyType);
+		}
+
+		public override List<BodyType> GetBodyTypes()
+		{
+			return _bodyTypeCollection.Find(_ => true).ToList();
+		}
+
+		public override BodyType GetBodyTypeById(int id)
+		{
+			return _bodyTypeCollection.Find(bodyType => bodyType.Id == id).FirstOrDefault();
+		}
+
+		public override void UpdateBodyType(BodyType bodyType)
+		{
+			_bodyTypeCollection.ReplaceOne(b => b.Id == bodyType.Id, bodyType);
+		}
+
+		public override void DeleteBodyType(int id)
+		{
+			_bodyTypeCollection.DeleteOne(bodyType => bodyType.Id == id);
+		}
+	}
+}
\ No newline at end of file
diff --git a/SUBD_Car_rent/database/Implementation.cs b/SUBD_Car_rent/database/ImplementationPostgres.cs
similarity index 99%
rename from SUBD_Car_rent/database/Implementation.cs
rename to SUBD_Car_rent/database/ImplementationPostgres.cs
index 94bbe47..0604499 100644
--- a/SUBD_Car_rent/database/Implementation.cs
+++ b/SUBD_Car_rent/database/ImplementationPostgres.cs
@@ -2,7 +2,7 @@
 
 namespace database
 {
-    public class Implementation : Abstractions
+    public class ImplementationPostgres : Abstractions
     {
         private NpgsqlConnection GetConnection()
         {
diff --git a/SUBD_Car_rent/database/database.csproj b/SUBD_Car_rent/database/database.csproj
index 715d83b..cf10113 100644
--- a/SUBD_Car_rent/database/database.csproj
+++ b/SUBD_Car_rent/database/database.csproj
@@ -7,6 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="MongoDB.Driver" Version="2.25.0" />
     <PackageReference Include="Npgsql" Version="8.0.2" />
   </ItemGroup>