diff --git a/Assets/PerfectWorld/Scripts/Managers/EC_InventoryUI.cs b/Assets/PerfectWorld/Scripts/Managers/EC_InventoryUI.cs
index 66d828909a..70ad7df4c7 100644
--- a/Assets/PerfectWorld/Scripts/Managers/EC_InventoryUI.cs
+++ b/Assets/PerfectWorld/Scripts/Managers/EC_InventoryUI.cs
@@ -29,6 +29,7 @@ namespace PerfectWorld.Scripts.Managers
         [SerializeField] private TextOutlet crcText;
         [SerializeField] private TextOutlet contentLenText;
         [SerializeField] private Button equipButton;
+        [SerializeField] private Button dropButton;
 
         [Header("Inventory Settings")]
         [SerializeField] private bool autoRefresh = true;
@@ -151,6 +152,30 @@ namespace PerfectWorld.Scripts.Managers
             }
         }
 
+        public void OnDropButtonClicked()
+        {
+            if (currentSelectedItem == null)
+            {
+                Debug.LogWarning("[InventoryUI] No item selected for drop operation");
+                return;
+            }
+
+            if (currentSelectedPackage == PKG_INVENTORY)
+            {
+                // Dropping from inventory
+                DropInventoryItem();
+            }
+            else if (currentSelectedPackage == PKG_EQUIPMENT)
+            {
+                // Dropping from equipment
+                DropEquipItem();
+            }
+            else
+            {
+                Debug.LogWarning($"[InventoryUI] Drop not supported for package {currentSelectedPackage}");
+            }
+        }
+
         private void EquipItem()
         {
             if (currentSelectedItem == null) return;
@@ -198,6 +223,30 @@ namespace PerfectWorld.Scripts.Managers
             });
         }
 
+        private void DropInventoryItem()
+        {
+            if (currentSelectedItem == null) return;
+
+            // Call RequestDropIvrtItem with slot index and amount
+            UnityGameSession.RequestDropIvrtItem((byte)currentSelectedSlot, 1);
+            Debug.Log($"[InventoryUI] Drop request sent for inventory item {currentSelectedItem.TemplateId} from slot {currentSelectedSlot} with amount {currentSelectedItem.Count}");
+            
+            // Refresh inventory after drop
+            RefreshAll();
+        }
+
+        private void DropEquipItem()
+        {
+            if (currentSelectedItem == null) return;
+
+            // Call RequestDropEquipItem with slot index
+            UnityGameSession.RequestDropEquipItem((byte)currentSelectedSlot);
+            Debug.Log($"[InventoryUI] Drop request sent for equipment item {currentSelectedItem.TemplateId} from slot {currentSelectedSlot}");
+            
+            // Refresh inventory after drop
+            RefreshAll();
+        }
+
         
         private int FindEmptyInventorySlot()
         {
@@ -351,8 +400,9 @@ namespace PerfectWorld.Scripts.Managers
             crcText?.Set(item.Crc.ToString());
             contentLenText?.Set((item.Content?.Length ?? 0).ToString());
 
-            // Setup equip button
+            // Setup equip and drop buttons
             SetupEquipButton(package, item);
+            SetupDropButton(package, item);
 
             ShowDetailPanel(true);
         }
@@ -407,6 +457,46 @@ namespace PerfectWorld.Scripts.Managers
             }
         }
 
+        private void SetupDropButton(byte package, InventoryItemData item)
+        {
+            if (dropButton == null) return;
+
+            // Clear previous listeners
+            dropButton.onClick.RemoveAllListeners();
+            dropButton.onClick.AddListener(OnDropButtonClicked);
+
+            // Set button text and visibility based on package
+            var buttonText = dropButton.GetComponentInChildren<UnityEngine.UI.Text>();
+            if (buttonText == null)
+            {
+                var tmpText = dropButton.GetComponentInChildren<TMPro.TextMeshProUGUI>();
+                if (tmpText != null)
+                {
+                    if (package == PKG_INVENTORY || package == PKG_EQUIPMENT)
+                    {
+                        tmpText.text = "Drop";
+                        dropButton.gameObject.SetActive(true);
+                    }
+                    else
+                    {
+                        dropButton.gameObject.SetActive(false);
+                    }
+                }
+            }
+            else
+            {
+                if (package == PKG_INVENTORY || package == PKG_EQUIPMENT)
+                {
+                    buttonText.text = "Drop";
+                    dropButton.gameObject.SetActive(true);
+                }
+                else
+                {
+                    dropButton.gameObject.SetActive(false);
+                }
+            }
+        }
+
         private static string GetPackageName(byte pkg)
         {
             switch (pkg)
diff --git a/Assets/PerfectWorld/Scripts/Network/UnityGameSession.cs b/Assets/PerfectWorld/Scripts/Network/UnityGameSession.cs
index 6451a0935a..55c721e7a8 100644
--- a/Assets/PerfectWorld/Scripts/Network/UnityGameSession.cs
+++ b/Assets/PerfectWorld/Scripts/Network/UnityGameSession.cs
@@ -10,6 +10,7 @@ using System.Collections.Generic;
 using System.Text;
 using System.Threading.Tasks;
 using UnityEngine;
+using UnityEngine.Rendering;
 using UnityEngine.SceneManagement;
 
 namespace BrewMonster.Network
@@ -138,7 +139,15 @@ namespace BrewMonster.Network
         {
             Instance._gameSession.RequestEquipItem(iIvtrIdx, iEquipIdx, callback);
         }
+        public static void RequestDropIvrtItem(byte index, int amount)
+        {
+            Instance._gameSession.RequestDropIvtrItem(index, amount);
+        }
 
+        public static void RequestDropEquipItem(byte index)
+        {
+            Instance._gameSession.RequestDropEquipItem(index);
+        }
         public static void RequestAllInventoriesAsync(Action callback = null, params byte[] packages)
         {
             if (packages == null || packages.Length == 0)