Single direction plastic geogrid is a polymer as the main raw material, adding UV protection, anti-aging agents, after the previously scattered distribution under uniaxial tension of chain-like molecular reorientation arranged linearly, extrusion pressed into sheets and then rushed rule hole pattern and longitudinal tension of high strength geotextile material. This polymer is directional linear condition and form a uniform distribution, node intensity high oblong lattice integrity structure. This structure has a very high tensile strength and tensile modulus and tensile strength of up to 100-200Mpa. To undertake and spread of the soil provide the ideal power chain systems. This product tensile strength (>150Mpa), suitable for all kinds of soil.