Which can be disassembled,with multi building containers utilization, it can be separated between printing process and powder cleaning process to shorten down time greatly and process in multi working positions parallelly. It adopts imported THK screw guide rail mechanism, and grating scale adjustment,which can realize positioning accuracy within ±0.005mm. The system is equipped with powder bed monitoring module and a built-in camera. It takes pictures for powder bed after each powder spreading and fusing to monitor powder spreading quality and fusing quality for each layer based on the algorithm analysis and comparison. Meanwhile, it can do powder replenishment automatically and alarm. The equipment is designed and manufactured in accordance with ISO standards. The whole system is certified in CE safety and explosion-proof.