A laser processing robot system including a manipulator, a laser processing tool attached to the manipulator, and a control unit for controlling operations of the manipulator and the laser processing tool. The laser processing tool includes a laser scan head with a movable mirror incorporated therein, and a movable support mechanism movably supporting the laser scan head. The control unit includes a rapid-traverse operation controlling section for controlling an operation of the movable support mechanism to make the laser scan head perform a rapid-traverse operation during a non-processing period when the laser scan head does not emit a laser beam. The rapid-traverse operation controlling section can control an operation of at least one of the manipulator and the movable mirror, in addition to an operation control of the movable support mechanism, during the non-processing period.