A robot-laser system having at least one mirror under active program control for reflecting a laser beam from a fixed laser beam source to a desired location. Preferably, first and second mirrors are mounted on an outer arm of the robot to move therewith and rotate relative thereto. A third mirror reflects the laser beam to the first and second mirrors. A programmable servo system automatically moves each of the mirrors relative to and in synchronization with movement of the moving parts of the robot. Each of the mirror is mounted for rotation about a pair of intersecting axes so that the laser beam strikes the point of intersection. In one of the disclosed embodiments a fourth mirror reflects the laser beam from the source to the other mirrors.