Geotextile has excellent filtration, drainage, isolation, reinforcement and protection. It has the characteristics of light weight, high tensile strength, good permeability, high temperature resistance, antifreeze, aging resistance and corrosion resistance. The application of geosynthetics originated in the 1950s. The domestic geotextiles are one of the national eight-five plans. In 1998, China issued the geotechnical composite staple fiber needle-punched nonwoven geotextile (GB/T17638). -1998) Standards, geotextiles have been widely used in many fields.