diff --git a/AIParkingApplication/AIParkingApplicationForm.cs b/AIParkingApplication/AIParkingApplicationForm.cs
index 3335a8a..07535cf 100644
--- a/AIParkingApplication/AIParkingApplicationForm.cs
+++ b/AIParkingApplication/AIParkingApplicationForm.cs
@@ -1,4 +1,5 @@
-using System;
+using NLog;
+using System;
 using System.Configuration;
 using System.Drawing;
 using System.Linq;
@@ -22,15 +23,19 @@ namespace AIParkingApplication
         private EngineApiController engineApiController;
         private string doorAccessControlDeviceIP;
 
+        private Logger applicationLogger;
+
         public AIParkingApplicationForm(ApiController apiController, string serverIPAddress, Config configOnWeb)
         {
             InitializeComponent();
             this.apiController = apiController;
             this.configOnWeb = configOnWeb;
+            applicationLogger = LogManager.GetLogger(AppConstant.APPLICATION_LOGGER_NAME);
 
             ReadAccessControlDeviceIPConfigurationFile();
             if (string.IsNullOrEmpty(doorAccessControlDeviceIP) || !Util.IsValidIPAddress(doorAccessControlDeviceIP))
             {
+                applicationLogger.Log(LogLevel.Error, "Kiểm tra lại cấu hình IP thiết bị mở cửa!");
                 MessageBox.Show("Kiểm tra lại cấu hình IP thiết bị mở cửa! (C3200)", "Lỗi", MessageBoxButtons.OK, MessageBoxIcon.Error);
                 Application.Exit();
             }
@@ -55,6 +60,7 @@ namespace AIParkingApplication
             }
             catch (Exception)
             {
+                applicationLogger.Log(LogLevel.Error, "Cấu hình URL của Engine nhận diện biển số lỗi!");
                 MessageBox.Show("Cấu hình API Plate Recognize lỗi!", "Cấu hình API Engine lỗi!", MessageBoxButtons.OK, MessageBoxIcon.Error);
                 return;
             }
@@ -149,6 +155,7 @@ namespace AIParkingApplication
             UpdateMenuStripItemStatus(sender as ToolStripMenuItem);
             StopAllLanes();
             UpdateLaneInIn();
+            applicationLogger.Log(LogLevel.Info, "Chuyển làn: IN-IN");
         }
 
         private void toolStripMenuItemSwitchLaneInOut_Click(object sender, EventArgs e)
@@ -157,6 +164,7 @@ namespace AIParkingApplication
             UpdateMenuStripItemStatus(sender as ToolStripMenuItem);
             StopAllLanes();
             UpdateLaneInOut();
+            applicationLogger.Log(LogLevel.Info, "Chuyển làn: IN-OUT");
         }
 
         private void toolStripMenuItemSwitchLaneOutIn_Click(object sender, EventArgs e)
@@ -165,6 +173,7 @@ namespace AIParkingApplication
             UpdateMenuStripItemStatus(sender as ToolStripMenuItem);
             StopAllLanes();
             UpdateLaneOutIn();
+            applicationLogger.Log(LogLevel.Info, "Chuyển làn: OUT-IN");
         }
 
         private void toolStripMenuItemSwitchLaneOutOut_Click(object sender, EventArgs e)
@@ -173,6 +182,7 @@ namespace AIParkingApplication
             UpdateMenuStripItemStatus(sender as ToolStripMenuItem);
             StopAllLanes();
             UpdateLaneOutOut();
+            applicationLogger.Log(LogLevel.Info, "Chuyển làn: OUT-OUT");
         }
 
         private void UpdateMenuStripItemStatus(ToolStripMenuItem selectedToolStripMenuItem)
@@ -225,27 +235,29 @@ namespace AIParkingApplication
                         if (lane0 == "in" && lane1 == "in")
                         {
                             UpdateLaneInIn();
-
+                            applicationLogger.Log(LogLevel.Info, $"Khởi động App sử dụng lane: IN-IN");
                         }
                         if (lane0 == "in" && lane1 == "out")
                         {
                             UpdateLaneInOut();
-
+                            applicationLogger.Log(LogLevel.Info, $"Khởi động App sử dụng lane: IN-OUT");
                         }
                         if (lane0 == "out" && lane1 == "in")
                         {
                             UpdateLaneOutIn();
-
+                            applicationLogger.Log(LogLevel.Info, $"Khởi động App sử dụng lane: OUT-IN");
                         }
                         if (lane0 == "out" && lane1 == "out")
                         {
                             UpdateLaneOutOut();
+                            applicationLogger.Log(LogLevel.Info, $"Khởi động App sử dụng lane: OUT-OUT");
                         }
                     }
                     else
                     {
                         Util.AddOrUpdateAppSettings(CURRENT_LANE_SETTING_KEY, "IN-OUT");
                         UpdateLaneInOut();
+                        applicationLogger.Log(LogLevel.Info, $"Khởi động App đọc config không đủ 2 param: IN-OUT");
                     }
                 }
             }
@@ -254,6 +266,7 @@ namespace AIParkingApplication
                 Util.AddOrUpdateAppSettings(CURRENT_LANE_SETTING_KEY, "IN-OUT");
                 UpdateLaneInOut();
                 Console.WriteLine($"{DateTime.Now.GetTimeFormatted()}\tReadLaneSettingFromConfigurationFile\t{ex.Message}");
+                applicationLogger.Log(LogLevel.Error, $"Đọc config làn lỗi khi khởi động app!\texMessage: {ex.Message}");
             }
         }
 
@@ -265,8 +278,9 @@ namespace AIParkingApplication
             }
             catch (Exception ex)
             {
-                Console.WriteLine($"{DateTime.Now.GetTimeFormatted()}\tReadAccessControlDeviceIPConfiguration\t{ex.Message}");
                 doorAccessControlDeviceIP = string.Empty;
+                Console.WriteLine($"{DateTime.Now.GetTimeFormatted()}\tReadAccessControlDeviceIPConfiguration\t{ex.Message}");
+                applicationLogger.Log(LogLevel.Error, $"Cấu hình IP thiết bị mở cửa lỗi(DOOR_ACCESS_DEVICE_CONTROL_IP)!\texMessage: {ex.Message}");
             }
         }
 
@@ -278,6 +292,7 @@ namespace AIParkingApplication
 
         private void AIParkingApplicationForm_FormClosing(object sender, FormClosingEventArgs e)
         {
+            applicationLogger.Log(LogLevel.Error, $"Đóng ứng dụng");
             Application.Exit();
         }
     }
diff --git a/AIParkingApplication/AppConstant.cs b/AIParkingApplication/AppConstant.cs
index fc8f2ca..a10d006 100644
--- a/AIParkingApplication/AppConstant.cs
+++ b/AIParkingApplication/AppConstant.cs
@@ -2,13 +2,15 @@
 {
     public static class AppConstant
     {
-        #region Application Messages
         public const string APPLICATION_IS_RUNNNING = "AIParkingApplication: Ứng dụng đã chạy!";
         public const string ERROR_TITLE = "Lỗi";
         public const string DATETIME_FORMAT = "HH:mm:ss dd/MM/yyyy";
-        #endregion
 
         public const string CAMERA_FAILED_IMAGE_PATH = @"Images\CantConnectCamera.jpg";
         public const string DEFAULT_LOGO_IMAGE = @".\Images\ApplicationLogo.ico";
+
+        public const string APPLICATION_LOGGER_NAME = "ApplicationLogger"; 
+        public const string PING_SERVER_LOGGER_NAME = "PingServerLogger";
+        public const string PING_DOOR_DEVICE_CONTROL_ACCESS_LOGGER_NAME = "PingDoorDeviceControlAccessLogger"; 
     }
 }