中央党校人工湖防渗首次采用新型宽幅聚乙烯土工膜，该材料具有防渗效果好、造价低、施工方便等优点。文中介绍了防渗材料的选择、设计要点及施工要求等。新型宽幅聚乙烯土工膜的应用为水库、渠道、人工湖等水利防渗工程提供了广阔的发展前景，同样也可广泛应用于市政、建筑、化工、交通等工程的防渗。 The Central Party School artificial lake seepage control for the first time using a new wide polyethylene geomembrane, the material has a seepage control effect, low cost, easy construction and so on. The paper introduces the selection of impermeable materials, design points and construction requirements. The application of the new wide-format polyethylene geomembrane provides broad prospects for water seepage control projects such as reservoirs, channels and man-made lakes and can also be widely applied to seepage control in municipal, construction, chemical and traffic projects.