Supplement: This book is compiled according to the requirements of "Training Objectives and Basic Specifications for Mechanical Professionals in Higher Vocational Education". This book is comprehensive, systematic and focused, and strives to reflect the advanced nature and practicality. The basic theory is "necessary, sufficient and practical", and the application examples are closely combined with the production practice. The book includes an overview of CNC machine tools, the basis of CNC machining programming, the mathematical processing of CNC machining technology and graphics, CNC lathe programming, CNC milling machine programming, machining center programming, automatic programming and so on.