Disposal of waste plastics is a serious global problem as they are not biodegradable and harmful to human health, and since these waste plastics are not scientifically treated, they cause ground and water pollution. If waste plastics are applied to road construction, it can not only solve the problem of disposal of waste plastics, but also improve the phenomenon of long construction period, frequent repairs and environmental pollution of traditional roads, and achieve the sustainable development. This article mentions two methods, one of which is to add waste plastic to bitumen, and this modified asphalt mixture and aggregate have better cohesion, stability, density and more water resistance, thus increasing the road the durability of the road increases the wear resistance and tear resistance of the road. Another method is to use waste plastics instead of bituminous mixes, with the introduction of newer industrially produced products to the market, the plastic road is making a circular infrastructure made from plastic waste a reality.