Learning CAD drawing has many benefits for engineering students. First of all, if you are engaged in machinery, construction, electronics and other industries, whether you are a technician or a front-line worker, you should learn CAD, because you have to deal with drawings and learn CAD, not only to learn drawing, but also to further master the knowledge related to drawing and improve your professional level. Secondly, CAD can express scientific research and design data efficiently and intuitively. Finally, learning CAD can cultivate the ability of spatial imagination and conception.