After decades of development, CNC cutting machines have made great progress in cutting energy and CNC control systems. Cutting energy has been developed from a single flame energy source to a variety of energy sources (flame, plasma, laser, high pressure water jet) Cutting method; CNC cutting machine control system has been developed from the simple function, complex programming and input mode, and the degree of automation to a functional, intelligent, graphical, and networked control mode; Drive and simulate servo drives to today's all-digital servo drives.