Numerical control machine tool is the abbreviation of computer numerical control machine tool, which is an automatic machine tool with program control system. The control system can use control codes or other symbolic instructions to logically process and decode the program, express it with coded numbers, and input it into the numerical control device through the information carrier. After the operation, the numerical control device sends out various control signals to control the action of the machine tool, and automatically processes the parts according to the shape and size required by the drawings. Numerical control machine tool solves the processing problem of complex, precise, small batch and multi-variety parts. It is a flexible and efficient automatic machine tool, which represents the development direction of modern machine tool control technology and is a typical mechatronics product. It has been widely used in modern industry and greatly improved the production efficiency of enterprises.