Abstract:This paper introduces the mechanism and characteristics of reverse filtration technology. Meanwhile, considering the defects including low intake efficiency, easily to be clogged and difficult for maintenance which exist in the tanxia water intake project, it’s emphatically elucidated the application of reverse filtration technology in the reconstruction of water intake project in mountain region. The operation result showed that this technology has the features of high intake efficiency, fine intake water quality, free of clogging and convenient for management. The application provides a good reference for the reconstruction of other similar projects.