Quick and easy for small files:
Standard AutoCAD lacks native KML support. To bring KML data into these versions, you must use one of these alternative methods: Is there any way to open a KMZ/KML in autocad? kml file in autocad
While AutoCAD cannot directly read KML files, several reliable workflows exist to bring geospatial data into your CAD environment. For occasional use, free online converters work well. For regular or complex projects, QGIS or AutoCAD Map 3D provide robust, accurate results. Quick and easy for small files: Standard AutoCAD
If you use Map 3D or Civil 3D (2019 or later), you can import KML files directly using the following steps: kml file in autocad