The present invention relates to the field of tire automatic inflation systems, and discloses a dual-channel rotation sealing apparatus assembly, which comprises a tire edge bracket, a dual-channel rotation shaft arranged on the tire edge bracket, and a rotation joint body arranged on the dual-channel rotation shaft, wherein the rotation joint body is provided with two gas inlet channels and a first gas outlet channel, the tire edge bracket is provided with two second gas outlet channels, the middle portion of the tire edge bracket is provided with a concave groove, a bearing is sleeved on the top end of the dual-channel rotation shaft, a bearing cover is sleeved on the middle portion of the dual-channel rotation shaft, the top end of the dual-channel rotation shaft is pressed into the first gas outlet channel of the rotation joint body, the dual-channel rotation shaft is locked on the rotation joint body by the bearing cover through a hexagon socket head cap screw and an elastic pad, and the terminal end of the dual-channel rotation shaft is screwed into the concave groove. According to the present invention, the dual-channel rotation sealing apparatus assembly can control the independent gas supply or deflation of the inner tire or outer tire of the vehicle, wherein the control of the vehicle gas inflation-deflation system on other tires cannot be affected when there is a problem in one of the inner tires or outer tires of the vehicle so as to improve the safety of the vehicle during the driving.