Laser processing robot is to be toward 21st advanced manufacturing technology in the world. The princeples,constructions,kinds and applications of the robot are comprehensively summarized. Some key techniques for laser robot are focussed on fiber transferable lasers,robot body,online and offline programming,robot intelligence and networking and three-dimensional (3D) reconstruction of repair area by inverse engineering. Laser robot development trends of remote processing,machine vision and hearing,robot intelligence and networking are presented.