With the continuous development of science and technology, mechanical design and manufacturing and its automation have become an important part of modern industry. It plays a key role in improving production efficiency, optimizing production mode and reducing production cost. However, with the continuous development of social economy and the continuous innovation of technology, the machinery manufacturing industry is also facing higher requirements and more severe challenges. Therefore, this paper will deeply discuss the development direction of mechanical design and manufacturing and its automation, in order to provide useful reference andreference for the future development of related industries.