Rutting deformation is the accumulation of permanent strip grooves on the road surface under the repeated action of running load, which is manifested as transverse elevation difference along the running belt.According to international statistics, about 80% of the maintenance of asphalt pavement is caused by rutting deformation. Compared with other diseases, rut is the most harmful, which directly threatens traffic safety and is the most difficult to maintain [9].Asphalt concrete pavement in the initial stage of use should not appear obvious rutting, but because of structural design, asphalt material, heavy traffic and high temperature and other reasons, the pavement rutting in recent years more frequent. Ruts not only harm driving safety, reduce driving stability and comfort, and because ruts are easy to water, road surface water permeates to the roadbed through cracks in the surface layer, easy to lead to early damage of roadbed.