Abstract : This paper focuses on the characteristics of high-speed cutting and related key technologies such as high-speed spindle unit, linear motor feed system and high-speed cutting tools. Keywords : high-speed cutting; high-speed machine tools; cutting tools High-speed cutting is a rapidly developing high-tech field in recent years . It is characterized by high cutting speed, high precision, and large feed, demonstrating a promising future for efficient and low-consumption cutting of metallic materials under high-speed cutting conditions. In the 1990s, with the development of science and technology, high-speed machine tools and high-speed cutting tools emerged. High-speed machining has been widely used in industries such as aerospace, mold making, and automobiles, generating significant economic benefits. High-speed machining requires not only high spindle speeds but also high axial feed rates and accelerations, as well as advanced cutting tools and related technologies. This article discusses only the aforementioned key technologies. [b][align=center]For more details, please click: Research on High-Speed ​​Machining and its Key Technologies[/align][/b]