It is used for two-dimensional drawing, detailed drawing, design documents and basic three-dimensional design, and has now become a widely popular drawing tool in the world. AutoCAD has a good user interface, and various operations can be performed through interactive menus or command lines. Its multi-document design environment allows non-computer professionals to learn to use it quickly. In the process of continuous practice, we can better master its various application and development skills, so as to continuously improve work efficiency. AutoCAD has wide adaptability and can run on microcomputers and workstations supported by various operating systems.