HDPE(high-density polyethylene)impermeable membrance ,which is a kind of new material with best anti seepage , antiseptic property and chemical durability, have been used extensively on the water conservancy project to preserve the dyke and reservoir not to be filter through. HDPE anti seepage have the characteristic and function that it can be processed according to the need of the actual project. Meanwhile, this kind of material have been also utilized in some places, such as channel, cisterns, sewage lagoons, swimming pools, building constructions, underground structures, refuse dumps and environmental structures, to avert the permeation, rot, leak and damp. This technique has been wildly used in developed countries since 1930s. In china, HDPE impermeable membrance has been popularized in every project gradually around the age of eighty. Landscape Works :artificial lake,ponds ,reservoirs,golf course substretes,revetment works,etc. Sanitation Project:MSW landfill,sewage treatment,toxic and hazardous compounds disposal sites storage of dangerous goods,construction and blasting garbage,etc. Water Conservancy: rivers,lakes water reservoir dam seepage control and stopping leaks and strengthened and the drains impermemeable ,vertical wall,revetment works,etc. Mining Chemicalplant: chemicalpiant,oil refineries,gasoline storage tanks impervious chemical reaction tanks, sedimentation pond liners,second liner,etc. ConstructionProjects: subwayconstruction,building underground engineering and reservoir on the roof,the roof garen impermeable ,sewage pipe lining,etc. Aqucaulture: ponds,the shrimp pond liners,sea cucumbers circle revetment etc: Agricutural Engineering: reservoir,drinking water tanks,water storage pound the irrigation system impervious. Salt Works plant crystallization pool,planted brine pool,salt membrane,and pool plastic memnrane aircraft.