When the thickness of the road reinforced with this material is the same as that of the unreinforced asphalt layer, the service life extension factor is 4-7 years. One layer of geogrid can save 50-100mm of high-quality asphalt concrete. It can effectively control, delay and eliminate the occurrence of cracks caused by low temperature and reflection cracks caused by base cracks. The minimum thickness of asphalt concrete that can be effectively reinforced by glass fiber geogrid reinforcement is 40mm, and the geogrid should be placed at the bottom of the asphalt concrete layer. Adding fiberglass geogrid to asphalt pavement can reduce rutting by more than 50%.