diff --git a/Runtime/GuruIAP/Runtime/Code/IAPServiceBase.cs b/Runtime/GuruIAP/Runtime/Code/IAPServiceBase.cs
index f99852b..c23475d 100644
--- a/Runtime/GuruIAP/Runtime/Code/IAPServiceBase.cs
+++ b/Runtime/GuruIAP/Runtime/Code/IAPServiceBase.cs
@@ -37,6 +37,7 @@ namespace Guru
         public bool IsInitialized => _storeController != null && _storeExtensionProvider != null;
 
         private Product _curPurchasingProduct = null;
+        private string _curProductCategory = "";
 
         private IAPModel _model;
         /// <summary>
@@ -498,7 +499,7 @@ namespace Guru
         /// 购买商品
         /// </summary>
         /// <param name="productName"></param>
-        public virtual T Buy(string productName)
+        public virtual T Buy(string productName, string category = "")
         {
             if (!IsInitialized)
             {
@@ -522,12 +523,14 @@ namespace Guru
                     .Configure<IGooglePlayConfiguration>()
                     .SetObfuscatedAccountId(IPMConfig.IPM_UID);
 #endif
+                if (string.IsNullOrEmpty(category)) category = info.Category;
                 _storeController.InitiatePurchase(product);
-
-                Analytics.IAPClick(info?.Category??"none", product.definition.id);
-                Analytics.IAPImp(DefaultCategory, product.definition.id);
-
                 _curPurchasingProduct = product;
+                _curProductCategory = category;
+                
+                Analytics.IAPClick(_curProductCategory, product.definition.id);
+                Analytics.IAPImp(_curProductCategory, product.definition.id);
+
 
                 OnBuyStart?.Invoke(productName);
                 return (T)this;
@@ -557,17 +560,17 @@ namespace Guru
             {
                 if (IsFirstIAP) Analytics.FirstIAP(info.Id, info.Price, info.CurrencyCode); // 上报首次支付打点
                 Analytics.ProductIAP(info.Id,info.Id, info.Price, info.CurrencyCode);
-                Analytics.IAPRetTrue(info.Category, info.Id, info.Price, info.CurrencyCode, info.Type, info.IsFree);
+                Analytics.IAPRetTrue(_curProductCategory, info.Id, info.Price, info.CurrencyCode, info.Type, info.IsFree);
                 success = true;
                 
                 SetIsIAPUser(success); // 设置用户属性标记
             }
             
             PurchaseCount++; // 记录支付次数
-            Debug.Log($"############ ProcessPurchase: PurchaseCount:{PurchaseCount}");
+            // Debug.Log($"############ ProcessPurchase: PurchaseCount:{PurchaseCount}");
             if (_curPurchasingProduct != null)
             {
-                _curPurchasingProduct = null; // 只有实际发生购买后才会有订单上报.  启动时的 Restore 操作自动调用支付成功. 这里做一个判定, 过滤掉订单的物品
+                // 只有实际发生购买后才会有订单上报.  启动时的 Restore 操作自动调用支付成功. 这里做一个判定, 过滤掉订单的物品
                 ReportPurchaseResult(purchaseEvent); // 支付结果上报
             }
             
@@ -589,6 +592,8 @@ namespace Guru
             OnPurchaseOver(success, productName); // 支付成功处理逻辑
             OnBuyEnd?.Invoke(productName, success);
             
+            ClearCurPurchasingProduct(); // 清除购买缓存
+            
             return PurchaseProcessingResult.Complete; // 直接Consume 掉当前的商品
         }
 
@@ -606,11 +611,11 @@ namespace Guru
             //上报点位，用户购买失败的原因
             if (failureReason == PurchaseFailureReason.UserCancelled)
             {
-                Analytics.IAPClose(info.Category, product.definition.id);
+                Analytics.IAPClose(_curProductCategory, product.definition.id);
             }
             else
             {
-                Analytics.IAPRetFalse(info.Category, product.definition.id, failureReason.ToString());
+                Analytics.IAPRetFalse(_curProductCategory, product.definition.id, failureReason.ToString());
             }
 
             LogI($"{Tag} --- OnPurchaseFailed :: failureReason = {failureReason}");
@@ -619,6 +624,13 @@ namespace Guru
             OnBuyEnd?.Invoke(info.Name, false);
             // 失败原因
             OnBuyFailed?.Invoke(info.Name, failureReason.ToString());
+            ClearCurPurchasingProduct(); // 清除购买缓存
+        }
+        
+        private void ClearCurPurchasingProduct()
+        {
+            _curPurchasingProduct = null;
+            _curProductCategory = "";
         }