In order to achieve the rapid rise of mechanical processing technology in our country and enhance the knowledge and professional capabilities of industrial workers, it is necessary to improve one's own knowledge and ability level as soon as possible. This book, in light of the actual situation of mechanical processing technology, comprehensively and simply introduces the relevant knowledge and basic skills of various mechanical specialties. Through careful study and extensive practice, beginners should be able to initially master the main methods and processes of mechanical processing and understand the characteristics of the processes. The compilation of this book focuses on the cultivation of beginners' practical operation abilities, that is, taking professional ability, social ability and method ability as the cultivation goals.