diff --git a/Assets/YooAsset/Runtime/AssetSystem/AssetSystem.cs b/Assets/YooAsset/Runtime/AssetSystem/AssetSystem.cs
index 8f40902..9d0b965 100644
--- a/Assets/YooAsset/Runtime/AssetSystem/AssetSystem.cs
+++ b/Assets/YooAsset/Runtime/AssetSystem/AssetSystem.cs
@@ -346,6 +346,15 @@ namespace YooAsset
 			report.ProviderInfos.Sort();
 			return report;
 		}
+		internal static List<BundleInfo> GetLoadedBundleInfos()
+		{
+			List<BundleInfo> result = new List<BundleInfo>(100);
+			foreach (var bundleLoader in _loaders)
+			{
+				result.Add(bundleLoader.MainBundleInfo);
+			}
+			return result;
+		}
 		#endregion
 	}
 }
\ No newline at end of file
diff --git a/Assets/YooAsset/Runtime/YooAssets.cs b/Assets/YooAsset/Runtime/YooAssets.cs
index dbb1ed1..b7d7470 100644
--- a/Assets/YooAsset/Runtime/YooAssets.cs
+++ b/Assets/YooAsset/Runtime/YooAssets.cs
@@ -294,6 +294,7 @@ namespace YooAsset
 		public static UpdateManifestOperation UpdateManifestAsync(int resourceVersion, int timeout = 60)
 		{
 			DebugCheckInitialize();
+			DebugCheckUpdateManifest();
 			if (_playMode == EPlayMode.EditorSimulateMode)
 			{
 				var operation = new EditorPlayModeUpdateManifestOperation();
@@ -1130,6 +1131,16 @@ namespace YooAsset
 					YooLogger.Warning($"Found illegal character in location : \"{location}\"");
 			}
 		}
+
+		[Conditional("DEBUG")]
+		private static void DebugCheckUpdateManifest()
+		{
+			var loadedBundleInfos = AssetSystem.GetLoadedBundleInfos();
+			if(loadedBundleInfos.Count > 0)
+			{
+				YooLogger.Warning($"Found loaded bundle before update manifest ! Recommended to call the  {nameof(ForceUnloadAllAssets)} method to release loaded bundle !");
+			}
+		}
 		#endregion
 
 		#region 私有方法