The present invention relates to a quick brake assembly for a high-speed train, a high-speed car, aircraft, and a high-speed motorcycle. The quick brake assembly includes at least one lifting device providing on a bottom portion of a corresponding vehicle, at least one air braking device mounting on a predetermined position of the corresponding vehicle, and at least one nozzle braking device mounting on a bottom portion of the corresponding vehicle. The lifting device includes a braking member having a zigzag cross section. The nozzle baking device includes a nozzle having a flat nozzle head, wherein the nozzle braking device is arranged to store a predetermined amount of braking agent.