Tool tire for mute cotton test and test method

The invention discloses a tool tire for mute cotton testing and a testing method, and belongs to the technical field of tire mute cotton testing. According to the technical scheme adopted by the invention, the inner cavity structure is composed of a tread and a sidewall which are located on the outer surface, and a cap ply, a belted layer, a lining layer and a tire bead which are located inside, the section curve of the tread in the axial direction is in an arc shape which is formed by sinking tire shoulders on the two sides towards the center of the tread, and during testing, mute cotton is attached to the arc-shaped sunken position. According to the invention, the concave part is arranged on the tread of the tire, so that the mute cotton is adhered to the tread of the tire during testing, an isolating agent on the inner wall of the tire does not need to be cleaned, the tire needs to be detached from a rim and then the mute cotton is applied when a next group of mute cotton is tested, and the working efficie