diff --git a/Hotel/HotelBusinessLogic/BusinessLogics/RoomLogic.cs b/Hotel/HotelBusinessLogic/BusinessLogics/RoomLogic.cs
new file mode 100644
index 0000000..8f42701
--- /dev/null
+++ b/Hotel/HotelBusinessLogic/BusinessLogics/RoomLogic.cs
@@ -0,0 +1,136 @@
+using HotelContracts.BindingModels;
+using HotelContracts.BusinessLogicsContracts;
+using HotelContracts.SearchModels;
+using HotelContracts.StoragesContracts;
+using HotelContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace HotelBusinessLogic.BusinessLogics
+{
+    public class RoomLogic : IRoomLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IRoomStorage _roomStorage;
+
+        public RoomLogic(ILogger<RoomLogic> logger, IRoomStorage roomStorage)
+        {
+            _logger = logger;
+            _roomStorage = roomStorage;
+        }
+        public bool Create(RoomBindingModel model)
+        {
+            CheckModel(model);
+
+            if (_roomStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+
+            return true;
+        }
+
+        public bool Delete(RoomBindingModel model)
+        {
+            CheckModel(model, false);
+
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+
+            if (_roomStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+
+            return true;
+        }
+
+        public RoomViewModel? ReadElement(RoomSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+
+            _logger.LogInformation("ReadElement. RoomName:{RoomName}.Id:{Id}", model.RoomName, model.Id);
+
+            var element = _roomStorage.GetElement(model);
+
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+
+            return element;
+        }
+
+        public List<RoomViewModel>? ReadList(RoomSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. RoomName:{RoomName}.Id:{ Id}", model?.RoomName, model?.Id);
+
+            var list = model == null ? _roomStorage.GetFullList() : _roomStorage.GetFilteredList(model);
+
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+
+            return list;
+        }
+
+        public bool Update(RoomBindingModel model)
+        {
+            CheckModel(model);
+
+            if (_roomStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+
+            return true;
+        }
+
+        private void CheckModel(RoomBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+
+            if (!withParams)
+            {
+                return;
+            }
+
+            if (string.IsNullOrEmpty(model.RoomName))
+            {
+                throw new ArgumentNullException("Нет названия комнате", nameof(model.RoomName));
+            }
+
+
+            if (string.IsNullOrEmpty(model.RoomFrame))
+            {
+                throw new ArgumentNullException("Нет названия корпусу", nameof(model.RoomFrame));
+            }
+
+            if (model.RoomPrice < 0)
+            {
+                throw new ArgumentNullException("Стоимость комнаты не может быть меньше 0", nameof(model.RoomPrice));
+            }
+
+            _logger.LogInformation("Room. RoomName:{RoomName}.RoomFrame:{ RoomFrame}.RoomPrice:{ RoomPrice}. Id: { Id}", model.RoomName, model.RoomFrame, model.RoomPrice, model.Id);
+        }
+    }
+}