Cutting tool mainly refers to the manufacturing process of the mechanical tool used for machining. With the development of manufacturing technology, cutting as the main basis for process manufacturing technology into the development of high-speed cutting, the cutting process and the development of new processing methods to provide complete sets of technology is characterized by the development of a new stage. With the growing emphasis on energy saving, lightweight mechanical parts trend is very clear. International Association Secretary-General Luo Baihui mold, tool industry shoulder the key equipment for the manufacturing industry with CNC tool task. Processing technology tool manufacturing industry as a whole is affected by a greater level, and the development of the manufacturing sector will promote the development of the tool industry. Tool technology toward high hardness, high speed, high precision and dry machining direction, in the automotive, aerospace, energy, military, mold and other areas play an important role. Aluminum and other light metals and fiber-reinforced composite materials obtained extensive use. Sharp increase in the amount of diamond tools and diamond-coated tools. Meanwhile, the high-performance high-speed steel cutting tools also support modern powder metallurgy technology, coating technology and other advanced technologies, apart from the traditional tool, and in some areas to achieve a high-speed, efficient processing. According to the development needs of the manufacturing sector, multi-functional composite tool, the tool will become the mainstream of high-speed and efficient tool development. Face increasingly difficult to machine materials, the cutting tool industry must improve tool materials, research and development of new materials and a more rational tool tool structure.