The present invention discloses a preparation method for the tire tread with no buffer cord layer. The preparation method adopts the duplex extruded dual compound tread method to prepare the tire tread, and specifically comprises: forming the adhering rubber sheet from the lower layer buffer rubber layer through calendaring of a three-roller calendar, conveying into a rubber dipping tank to carry out uniform slurry dipping, drying through a drying device, closely compounding the obtained material and the upper layer tire tread rubber layer extruded through a cold material feeding extruder after passing through a pressing roller, cooling through a water bath tank, carrying out blow drying, weighing, and carrying out punching shear to prepare the tire tread. According to the preparation method of the present invention, the slurry dipping step of the buffer rubber layer is added, the preparation method has characteristics of simple process and easy operation, and achieves the effect of the tire tread with the buffer cord, the adhesion force between the tire tread with no buffer cord layer and the tire body is increased, the phenomenon of disengaging between the tire tread with no buffer cord layer and the cord is reduced and solved, the production cost is reduced, and the service life of the tire tread with no buffer cord layer is prolonged.