Compositehas the characteristics of high strength, good elongation, large modulus of deformation, acid and alkali resistance, corrosion resistance, aging resistance, and good impermeability. The products produced by geomembrane manufacturers can be used in unconventional temperature environments because they use polymer materials and add anti degradation agents during the production process. Composite geomembranes are commonly used for anti-seepage treatment of embankment and channel engineering. As a composite product of geotextile and ordinary geomembranes, in addition to having good anti-seepage, protection, reinforcement, drainage, and barrier functions, it has high toughness and good chemical corrosion resistance. It exceeds the application criteria of simply using cloth or film. It is easy to construct, does not require adhesive, has a wider range of applications, and is easy to use.