diff --git a/Assets/YooAsset/Editor/AssetBundleBuilder/BuildTasks/TaskPrepare.cs b/Assets/YooAsset/Editor/AssetBundleBuilder/BuildTasks/TaskPrepare.cs
index 448b602..6d21ec2 100644
--- a/Assets/YooAsset/Editor/AssetBundleBuilder/BuildTasks/TaskPrepare.cs
+++ b/Assets/YooAsset/Editor/AssetBundleBuilder/BuildTasks/TaskPrepare.cs
@@ -26,6 +26,17 @@ namespace YooAsset.Editor
 			if (string.IsNullOrEmpty(buildParameters.PipelineOutputDirectory))
 				throw new Exception("输出目录不能为空");
 
+			// 检测当前是否正在构建资源包
+			if (BuildPipeline.isBuildingPlayer)
+				throw new Exception("当前正在构建资源包，请结束后再试");
+
+			// 检测是否有未保存场景
+			if (EditorTools.HasDirtyScenes())
+				throw new Exception("检测到未保存的场景文件");
+
+			// 保存改动的资源
+			AssetDatabase.SaveAssets();
+
 			// 增量更新时候的必要检测
 			var buildMode = buildParameters.Parameters.BuildMode;
 			if (buildMode == EBuildMode.IncrementalBuild)
diff --git a/Assets/YooAsset/Editor/EditorTools.cs b/Assets/YooAsset/Editor/EditorTools.cs
index 784f825..fc1effd 100644
--- a/Assets/YooAsset/Editor/EditorTools.cs
+++ b/Assets/YooAsset/Editor/EditorTools.cs
@@ -7,6 +7,7 @@ using System.IO;
 using System.Text;
 using UnityEngine;
 using UnityEditor;
+using UnityEditor.SceneManagement;
 
 namespace YooAsset.Editor
 {
@@ -265,6 +266,20 @@ namespace YooAsset.Editor
 		}
 		#endregion
 
+		#region SceneUtility
+		public static bool HasDirtyScenes()
+		{
+			var sceneCount = EditorSceneManager.sceneCount;
+			for (var i = 0; i < sceneCount; ++i)
+			{
+				var scene = EditorSceneManager.GetSceneAt(i);
+				if (scene.isDirty)
+					return true;
+			}
+			return false;
+		}
+		#endregion
+
 		#region 文件
 		/// <summary>
 		/// 创建文件所在的目录