The invention provides a slow-down device for weight measurement and verification, which includes a damping support, a fixed support, a lower connecting plate, an upper connecting plate, a mass comparator, a slow-down baffle, a compression nut, and a universal wheel; The fixed support fixes the upper and lower connecting plates in the device, the universal wheel is installed at one end of the fixed support, the lower connecting plate is sleeved at one end of the fixed supporting, and the compression nut is used to fasten the lower connecting plate. One end of the damping support is installed on the lower connecting plate, and the other end protrudes from the upper cover of the mass comparator; the mass comparator is placed flat on the upper connecting plate, and its four legs are placed in the bearing area of the fixed support; the buffer baffle is installed on the damping The threaded end of the support guide is used to make contact with the weight to be tested. The device of the invention has reasonable structure, is movable, and is easy to operate, and can have a slow-down and vibration-reducing effect on the placement action of weights of 1 ton or more in the measurement verification process, so as to ensure that the mass comparator is not damaged by impact when the weights are placed.