Abstract: There are 2 435 reservoirs mainly for flood prevention and irrigation in Fujian province. Among them, there are 458 dangerous reservoirs and 1 003 diseased reservoirs. This paper, after research on seepage characteristics and seepage control theory of earth- rock dams, analysed and summarized main anti- seepage rehabilitation technology. Furthermore, finite element calculation method and anti- seepage material test were taken. According to seepage and deformation of diseased earth- rock dams in Fujian province, treatment technology and rehabilitation model were advanced in this paper, for reference.