LDPE geomembrane is a new geomembrane with low density polyethylene as the base material. Its tensile strength and flexibility is better than HDPE geomembrane.The composite material which bonded together by LDPE geomembrane and geotextile, has the characteristics of corrosion resistance, low temperature resistance, light weight, strong tear resistance and so on. LDPE Geomembrane has the characteristics of low cost and high quality. Other geotechnical impervious materials of the same kind are not comparable.