This article primarily investigates the application of rubber processing aids produced by Rhine Chemicals (Qingdao) Co. LTD. in tire tread formulations. The results indicate that when 2.5 parts of processing aid PP are added to the tire tread formulation, the Mooney viscosity of the tread compound can be effectively reduced by 6 to 10 values without significantly affecting the physical properties of the tread compound. At the same time, during the extrusion production of tread half-components, the molding temperature of the components decreases by approximately 3 °C. For multi-stage mixing formulations, the use of rubber processing aids can reduce the number of mixing stages and enhance efficiency, effectively improving production efficiency and reducing production costs. The only minor drawback is a slight decrease in carbon black dispersion.