The invention discloses automatic assembly equipment of vehicle valve elements. The equipment comprises a valve element assembly base, and a rubber pad assembly device, a horn mouth assembly device, a sealing ring assembly device and a carrying movement device clockwise mounted around the valve element assembly base; ; the valve element assembly base is provided with a box base frame; the box base frame is provided with a sealing plate module; the box base frame is provided with a worktable; a rotating device is arranged on the worktable; eight valve element body fixtures are uniformly arranged on the rotating device; and the rubber pad assembly device is arranged on the left side of the valve element assembly base, and comprises a rubber pad feeding mechanism, a valve element body feeding mechanism and a rubber pad assembly mechanism. Compared with the prior art, the equipment has the following beneficial effects: the equipment greatly relieves the labor intensity of workers assembling the vehicle valve elements, improves the working efficiency, improves the safety, and is stable and reliable.