A robot-assisted ultrasonic osteotome powered system is disclosed comprising an ultrasonic osteotome powered system, a robot-assisted surgical system and a controller. The osteotome powered system comprises an ultrasonic transducer for converting electrical energy into mechanical energy and an ultrasonic osteotome for delivering the mechanical energy to a bone. The robot assisted surgical system comprises a base and a robot arm mounted to the base, and the ultrasonic osteotome powered system is detachably connected to a movable end of the robot arm. The robot arm is used to control the position of, the spatial angle of, and a force applied by a cutting end of the ultrasonic osteotome powered system to the bone to be cut. The controller is communicatively connected to the ultrasonic osteotome powered system, for controlling a cutting power of the ultrasonic osteotome powered system. The controller controls the output power of the ultrasonic osteotome powered system based on the remaining cutting thickness and the density of the bone, the type of an adjacent tissue, etc. The robot-assisted ultrasonic osteotome powered system of the present disclosure improves the safety and accuracy of systems for orthopedic surgery, particularly minimally invasive orthopedic surgery. Fig. 1 for publication.Se describe un sistema accionado por osteótomo ultrasónico asistido por robot, el cual comprende un sistema accionado por osteótomo ultrasónico, un sistema quirúrgico asistido por robot, así como un controlador, en donde el sistema accionado por osteótomo comprende un transductor ultrasónico para convertir la energía eléctrica en energía mecánica y un osteótomo ultrasónico para distribuir la energía mecánica hacia un hueso； el sistema quirúrgico asistido por robot comprende una base y un brazo de robot montado en la base, el sistema accionado por osteótomo ultrasónico se conecta en forma desmontable a un extremo móvil del brazo de robot, y el brazo de robot se utiliza para controla
