A whole set of laser cutting machine control system was developed to meet the high speed and high precision requirements of domestic laser cutting machine.In the system， EtherCAT networktype high speed motion control was combined with high precision machine vision inspection to solve the problems of traditional metal cutting equipment controlled by common PLC or single chip microcomputer, such as complex wiring, slow running speed, difficult maintenance and inflexible design.Fullautomatic machine vision inspection was used to instead of manual inspection.The debugging results show that the system is not only highly automated, but also can realize the high speed and high precision operation of laser cutting machine, and the product quality has been greatly improved. The system provides a strong technical support for the upgrade and transformation of domestic laser cutting machine.