The Changli hot spring is in the intersection zone of Puduhe fault and Damiluo—Maguantun fault, with the special geology-structure conditions and complicated underground water cycle. Because of the superiority of high T, good water quality, shallow buried depth, easy exploitation and convenient traffic, the development significance is very great. The study on genesis mechanism, cycle system of supplement, surface flow and drainage is very helpful in the scientific and rational direction of exploitation and utilization of the hot spring resources.