1.首先新建Map并保存，然后导入一张贴图作为地图图标
2.复制地图资源到D:\Epic Games\UE_4.17\Engine\Content\Maps\Templates下，复制贴图到D:\Epic Games\UE_4.17\Engine\Content\Maps\Templates\Thumbnails下
3.打开D:\Epic Games\UE_4.17\Engine\Config下的BaseEngine.ini找到
[/Script/UnrealEd.UnrealEdEngine]
AutoSaveIndex=0
+TemplateMapInfos=(ThumbnailTexture=Texture2D'/Engine/Maps/Templates/Thumbnails/Default.Default',Map="/Engine/Maps/Templates/Template_Default")
+TemplateMapInfos=(ThumbnailTexture=Texture2D'/Engine/Maps/Templates/Thumbnails/VR-Basic.VR-Basic',Map="/Engine/Maps/Templates/VR-Basic")
并照着添加+TemplateMapInfos=(ThumbnailTexture=Texture2D'/Engine/Maps/Templates/Thumbnails/as.as',Map="/Engine/Maps/Templates/Untitled")保存
4.打开引擎后看效果吧
