The breeding behaviors of Wenxian Knobby Newt(Tylototriton wenxianensis) were observed in Qingchuan of Sichuan Province and Wenxian of Gansu Province, during April to September 2006 and April to September 2007.The breeding features were primarily studied including sexual differences during the breeding season,breeding migration,mating and spawning,and development of embryos.It shows that the breeding period lasted from early April to early September and the sex ratio kept changing during the period.Breeding behaviors began with the migration and males kept active during the whole course.Courtship,mating and spawning all happened overland around the pools.Females spawned mainly during early May to late July.A female laid 42.8 eggs on average(n=6) and hatching period averaged 26.8 d(n=119)with mean hatchability of 46.3%(n=6).With air temperature rising,relative humidity and rainfall increasing,laid eggs and mean hatching rate increased,while mean hatching period shortened.