The machine uses laser melting technology to selectively scan the metal powder according to the layered cross-section information of the digital model, and finally melt the metal powder layer by layer. The equipment has the characteristics of high molding accuracy, good stability, interactive humanization and high safety. It adopts high sealing molding chamber design, advanced optical path system, excellent wind field design, high-precision servo motor and screw transmission mechanism to ensure stable molding accuracy and speed, stable operation and simple operation. Powder sealing operation, anti-static treatment, explosion-proof safety treatment and other safety design, to achieve real-time monitoring of equipment working status, abnormal automatic alarm, to ensure the safe and reliable operation of equipment.