A walking rehabilitation robot system is provided, which includes two robot feet, any robot foot of the sound leg will generate a plurality of motion detection signals by first move so that another robot foot learns to move. A control device is electrically connected to each robot foot and receives the motion detection signals transmitted by the robot foot of first move. The control device calculates a first movement track by using the motion detection signals, and then calculates the required motor torque to generate a second movement track according to the first movement track. The control device controls the movement of the other robot foot based on the second movement track. The present invention designs for a user with an inconvenient mobility. The user uses a normal movement of sound half body so that the other robot foot can move the inconveniently moved part immediately.