The invention provides a metallic glass composite material ultrasound-assisted 3D cold printing device and method, and belongs to the field of additive manufacturing. The metallic glass composite material ultrasound-assisted 3D cold printing device comprises an ultrasonic vibration material cylinder, a three-axis cold printing device, an ultrasonic vibration base plate and a base machine box. According to the metallic glass composite material ultrasound-assisted 3D cold printing device, the 3D cold printing technology, the ultrasonic vibration technology and the superfine-particle reinforced metal matrix composite material technology are combined, the ultrasonic vibration material cylinder is fixedly arranged on the base machine box, the three-axis cold printing device is fixedly arranged on the base machine box, and the ultrasonic vibration base plate is fixedly arranged on the base machine box. According to the metallic glass composite material ultrasound-assisted 3D cold printing device and method, superfine reinforced particles are added to a metallic particle solution, so that the mechanical property of a material is enhanced; the distribution uniformity of the superfine particles in the metallic particle solution is improved by the use of ultrasonic vibration; and a three-dimensional metallic glass composite material part is directly formed through the 3D cold printing technology, the forming speed is high, the part strength is high, the density is uniform, the cost is low, and no special requirements for the working environment exist.