The present invention is connected to the footrest of the walking rehabilitation robot, a driving unit that transmits a driving force to operate at a preset speed, a speed sensing unit that detects the walking speed of the occupant, and the speed detected by the speed sensing unit and the speed applied by the driving unit are compared. And a control unit for controlling the speed of the driving unit, wherein the driving unit transmits power to the occupant, but the driving force of the occupant is not transmitted to the driving unit.