diff --git a/Runtime/GuruCore/Runtime/Ads/ADService.cs b/Runtime/GuruCore/Runtime/Ads/ADService.cs
index 7a754a2..c5c2756 100644
--- a/Runtime/GuruCore/Runtime/Ads/ADService.cs
+++ b/Runtime/GuruCore/Runtime/Ads/ADService.cs
@@ -164,11 +164,12 @@ namespace Guru
         /// </summary>
         private void OnChannelLoadRewardAD()
         {
+	        // 各 Channel 都去加载激励视频
         	foreach (var channel in _adChannels)
         	{
         		channel?.LoadRewardAD();
         	}
-            // if (_asyncLoader == null) 
+            // 最后 Max 渠道进行加载 
 	        OnLoadMaxRV();
         }
         
diff --git a/Runtime/GuruCore/Runtime/Ads/ADServiceBase.cs b/Runtime/GuruCore/Runtime/Ads/ADServiceBase.cs
index 0468424..84a248f 100644
--- a/Runtime/GuruCore/Runtime/Ads/ADServiceBase.cs
+++ b/Runtime/GuruCore/Runtime/Ads/ADServiceBase.cs
@@ -227,7 +227,7 @@ namespace Guru
         private int GetAdsLoadDuration(ref float startTime)
         {
             int duration = (int)((Time.realtimeSinceStartup - startTime) * 1000);
-            startTime = 0;
+            startTime = Time.realtimeSinceStartup;
             return duration;
         }
 
@@ -264,7 +264,16 @@ namespace Guru
             _badsloadStartTime = Time.realtimeSinceStartup;
         }
 
+        protected virtual void OnBadsLoaded()
+        {
+            _badsloadStartTime = Time.realtimeSinceStartup;
+            OnBannerLoaded?.Invoke();
+        }
 
+        /// <summary>
+        /// 显示 Banner 
+        /// </summary>
+        /// <param name="category"></param>
         public virtual void ShowBanner(string category = "")
         {
             _badsCategory = category;
@@ -272,13 +281,19 @@ namespace Guru
             MaxSdk.ShowBanner(adUnitId);
             MaxSdk.SetBannerBackgroundColor(adUnitId, _backColor);
             OnBannerImpEvent(adUnitId);
+            MaxSdk.StartBannerAutoRefresh(adUnitId);
             _bannerVisible = true;
         }
 
+        /// <summary>
+        /// 隐藏 Banner
+        /// </summary>
         public virtual void HideBanner()
         {
             MaxSdk.HideBanner(GetBannerID());
+            MaxSdk.StopBannerAutoRefresh(GetBannerID());
             _bannerVisible = false;
+
         }
 
         /// <summary>
@@ -295,8 +310,7 @@ namespace Guru
             // Analytics.ADBadsLoaded(adUnitId, GetAdsLoadDuration(ref _badsloadStartTime), _badsCategory);
             Analytics.ADBadsLoaded(AdParams.Build(adUnitId, adInfo,
                 duration: GetAdsLoadDuration(ref _badsloadStartTime), category: _badsCategory));
-            
-            OnBannerLoaded?.Invoke();
+            OnBadsLoaded();
         }
 
         private void OnBannerFailedEvent(string adUnitId, MaxSdkBase.ErrorInfo errorInfo)
@@ -331,8 +345,7 @@ namespace Guru
             {
                 OnAdRevenuePaidEvent(adUnitId, adInfo); // Banner 只有显示时才上报收益值
             }
-        } 
-        
+        }
 
         #endregion
 
@@ -561,7 +574,7 @@ namespace Guru
             // this.Log("OnRewardedAdLoadedEvent");
             // Analytics.ADRadsLoaded(adUnitId, GetAdsLoadDuration(ref _radsLoadStartTime), _rewardCategory);
             Analytics.ADRadsLoaded(AdParams.Build(adUnitId,
-                duration: GetAdsLoadDuration(ref _iadsLoadStartTime), category: _iadsCategory));
+                duration: GetAdsLoadDuration(ref _radsLoadStartTime), category: _iadsCategory));
             _rewardRetryAttempt = 0;
 
             OnRewardLoaded?.Invoke();
diff --git a/Runtime/GuruCore/Runtime/Ads/Channels/Max/AdChanelMax.cs b/Runtime/GuruCore/Runtime/Ads/Channels/Max/AdChanelMax.cs
index 45c2ca6..902bdb6 100644
--- a/Runtime/GuruCore/Runtime/Ads/Channels/Max/AdChanelMax.cs
+++ b/Runtime/GuruCore/Runtime/Ads/Channels/Max/AdChanelMax.cs
@@ -2,6 +2,7 @@
 namespace Guru
 {
     using UnityEngine;
+    using System;
 
     /// <summary>
     /// MAX 自有渠道初始化
@@ -15,15 +16,14 @@ namespace Guru
 
         public bool IsEnabled => true;
         public Color BannerBackColor { get; set; }
-
         #endregion
         
         #region 广告位
         
         // ---------------- Max 广告位ID -------------------- 
-        private string MaxBannerSlotID => GuruSettings.Instance.ADSetting.GetBannerID();
-        private string MaxIVSlotID => GuruSettings.Instance.ADSetting.GetInterstitialID();
-        private string MaxRVSlotID => GuruSettings.Instance.ADSetting.GetRewardedVideoID();
+        internal string MaxBannerSlotID => GuruSettings.Instance.ADSetting.GetBannerID();
+        internal string MaxIVSlotID => GuruSettings.Instance.ADSetting.GetInterstitialID();
+        internal string MaxRVSlotID => GuruSettings.Instance.ADSetting.GetRewardedVideoID();
         
         #endregion