The Shimen As-(Au) deposit in Hunan Province, characterized by a pipe-shaped ore body and a typical structural model of three layers, is believed to be of hot spring origin. Silicalites in the ore body are most probably, silica sinters deposited from hot spring waters. Trace elements in ores are similar to those in sediments from modern hot springs, and the components of ore-forming fluids enriched in Na+, Ca2+, Cl-, HCO4- and SO42- are also similar to those of modern spring waters in the area. O,H, Ar and He isotope studies of hot spring waters show that they came dominantly from meteoric water and, by analogy, the ore forming-fluids may be alsd mainly from meteoric water. A minerogenetic model of As-(Au) deposits of hot spring type is proposed in the paper: circulating", migrating in strata and being heated by the deep thermal flow system; the percolating meteoric water may scavenge ore elements and mineralizing agents from the strata, resulting in ore-forming fluid. As this fluid rise up along faults, boiling and precipitation of such ore elements as As and minor Au and Sb would be brought about owing to abrupt chenges in physiochemical conditions.