High strength polyester glass fiber cloth is a new type of road geo-materials developed after geotextile and geogress. It is made of glass fiber and polyester fiber as main raw materials by wet process. The product has the characteristics of glass fiber strength, heat resistance, aging resistance, water resistance and polyester fiber flexibility, and get a "rigid and flexible" new material, overcome their shortcomings: brittleness, heat resistance. The application examples show that the composite of polyester glass fiber cloth with asphalt and asphalt mixture layer can improve the flexural tensile strength and deformation resistance of asphalt mixture, and the crack prevention effect is obvious.