diff --git a/Api/Factory/UserFactory.cs b/Api/Factory/UserFactory.cs
index 68b7dba..54cabe4 100644
--- a/Api/Factory/UserFactory.cs
+++ b/Api/Factory/UserFactory.cs
@@ -13,9 +13,9 @@ namespace Milimoe.FunGame.Core.Api.Factory
             return General.UnknownUserInstance;
         }
 
-        public static User Create(long Id = 0, string Username = "", string Password = "", DateTime? RegTime = null, DateTime? LastTime = null, string Email = "", string NickName = "", bool IsAdmin = false, bool IsOperator = false, bool IsEnable = true, decimal Credits = 0, decimal Materials = 0, decimal GameTime = 0, string AutoKey = "")
+        public static User Create(long Id = 0, string Username = "", DateTime? RegTime = null, DateTime? LastTime = null, string Email = "", string NickName = "", bool IsAdmin = false, bool IsOperator = false, bool IsEnable = true, decimal Credits = 0, decimal Materials = 0, decimal GameTime = 0, string AutoKey = "")
         {
-            return new User(Id, Username, Password, RegTime, LastTime, Email, NickName, IsAdmin, IsOperator, IsEnable, Credits, Materials, GameTime, AutoKey);
+            return new User(Id, Username, RegTime, LastTime, Email, NickName, IsAdmin, IsOperator, IsEnable, Credits, Materials, GameTime, AutoKey);
         }
     }
 }
diff --git a/Api/Utility/Factory.cs b/Api/Utility/Factory.cs
index 876ffb9..46bda57 100644
--- a/Api/Utility/Factory.cs
+++ b/Api/Utility/Factory.cs
@@ -160,7 +160,6 @@ namespace Milimoe.FunGame.Core.Api.Utility
         /// </summary>
         /// <param name="Id"></param>
         /// <param name="Username"></param>
-        /// <param name="Password"></param>
         /// <param name="RegTime"></param>
         /// <param name="LastTime"></param>
         /// <param name="Email"></param>
@@ -173,9 +172,9 @@ namespace Milimoe.FunGame.Core.Api.Utility
         /// <param name="GameTime"></param>
         /// <param name="AutoKey"></param>
         /// <returns></returns>
-        public static User GetUser(long Id = 0, string Username = "", string Password = "", DateTime? RegTime = null, DateTime? LastTime = null, string Email = "", string NickName = "", bool IsAdmin = false, bool IsOperator = false, bool IsEnable = true, decimal Credits = 0, decimal Materials = 0, decimal GameTime = 0, string AutoKey = "")
+        public static User GetUser(long Id = 0, string Username = "", DateTime? RegTime = null, DateTime? LastTime = null, string Email = "", string NickName = "", bool IsAdmin = false, bool IsOperator = false, bool IsEnable = true, decimal Credits = 0, decimal Materials = 0, decimal GameTime = 0, string AutoKey = "")
         {
-            return UserFactory.Create(Id, Username, Password, RegTime, LastTime, Email, NickName, IsAdmin, IsOperator, IsEnable, Credits, Materials, GameTime, AutoKey);
+            return UserFactory.Create(Id, Username, RegTime, LastTime, Email, NickName, IsAdmin, IsOperator, IsEnable, Credits, Materials, GameTime, AutoKey);
         }
 
         /// <summary>
@@ -203,7 +202,6 @@ namespace Milimoe.FunGame.Core.Api.Utility
             {
                 long Id = (long)dr[UserQuery.Column_UID];
                 string Username = (string)dr[UserQuery.Column_Username];
-                string Password = (string)dr[UserQuery.Column_Password];
                 DateTime RegTime = (DateTime)dr[UserQuery.Column_RegTime];
                 DateTime LastTime = (DateTime)dr[UserQuery.Column_LastTime];
                 string Email = (string)dr[UserQuery.Column_Email];
@@ -215,7 +213,7 @@ namespace Milimoe.FunGame.Core.Api.Utility
                 decimal Materials = Convert.ToDecimal(dr[UserQuery.Column_Materials]);
                 decimal GameTime = Convert.ToDecimal(dr[UserQuery.Column_GameTime]);
                 string AutoKey = (string)dr[UserQuery.Column_AutoKey];
-                return UserFactory.Create(Id, Username, Password, RegTime, LastTime, Email, NickName, IsAdmin, IsOperator, IsEnable, Credits, Materials, GameTime, AutoKey);
+                return UserFactory.Create(Id, Username, RegTime, LastTime, Email, NickName, IsAdmin, IsOperator, IsEnable, Credits, Materials, GameTime, AutoKey);
             }
             return UserFactory.Create();
         }
diff --git a/Entity/User/User.cs b/Entity/User/User.cs
index d746b1c..6f8cd37 100644
--- a/Entity/User/User.cs
+++ b/Entity/User/User.cs
@@ -10,7 +10,6 @@ namespace Milimoe.FunGame.Core.Entity
         public override Guid Guid { get; set; } = Guid.NewGuid();
         public override long Id { get; set; }
         public string Username { get; set; } = "";
-        public string Password { get; set; } = "";
         public DateTime RegTime { get; set; }
         public DateTime LastTime { get; set; }
         public string Email { get; set; } = "";
@@ -30,11 +29,10 @@ namespace Milimoe.FunGame.Core.Entity
 
         }
 
-        internal User(long Id = 0, string Username = "", string Password = "", DateTime? RegTime = null, DateTime? LastTime = null, string Email = "", string NickName = "", bool IsAdmin = false, bool IsOperator = false, bool IsEnable = true, decimal Credits = 0, decimal Materials = 0, decimal GameTime = 0, string AutoKey = "")
+        internal User(long Id = 0, string Username = "", DateTime? RegTime = null, DateTime? LastTime = null, string Email = "", string NickName = "", bool IsAdmin = false, bool IsOperator = false, bool IsEnable = true, decimal Credits = 0, decimal Materials = 0, decimal GameTime = 0, string AutoKey = "")
         {
             this.Id = Id;
             this.Username = Username;
-            this.Password = Password;
             this.RegTime = RegTime ?? General.DefaultTime;
             this.LastTime = LastTime ?? General.DefaultTime;
             this.Email = Email;
diff --git a/Library/Common/JsonConverter/UserConverter.cs b/Library/Common/JsonConverter/UserConverter.cs
index 684c59c..ea0416b 100644
--- a/Library/Common/JsonConverter/UserConverter.cs
+++ b/Library/Common/JsonConverter/UserConverter.cs
@@ -34,9 +34,6 @@ namespace Milimoe.FunGame.Core.Library.Common.JsonConverter
                         case UserQuery.Column_Username:
                             user.Username = reader.GetString() ?? "";
                             break;
-                        case UserQuery.Column_Password:
-                            user.Password = reader.GetString() ?? "";
-                            break;
                         case UserQuery.Column_RegTime:
                             string regTime = reader.GetString() ?? "";
                             if (DateTime.TryParseExact(regTime, General.GeneralDateTimeFormat, null, System.Globalization.DateTimeStyles.None, out DateTime RegTime))
@@ -92,7 +89,6 @@ namespace Milimoe.FunGame.Core.Library.Common.JsonConverter
             writer.WriteStartObject();
             writer.WriteNumber(UserQuery.Column_UID, value.Id);
             writer.WriteString(UserQuery.Column_Username, value.Username);
-            writer.WriteString(UserQuery.Column_Password, value.Password);
             writer.WriteString(UserQuery.Column_RegTime, value.RegTime.ToString(General.GeneralDateTimeFormat));
             writer.WriteString(UserQuery.Column_LastTime, value.LastTime.ToString(General.GeneralDateTimeFormat));
             writer.WriteString(UserQuery.Column_Email, value.Email);