Dayang Newt (Cynops orphicus) is an endangered species and endemic to China, there′s no any report on its reproductive ecology. The breeding season of Dayang Newt starts in the middle of May, we paired female newt with multiple males in aquariums to observe interaction of them and record duration or frequency of different sexual movements. The sexual behavior of this species resembled that of Chinese Fire-bellied Newt (C. orientalis), but male C. oriphicus had longer tail-fanning and creeping duration (25﹣37 s) than C. orientalis (10﹣20 s, Table 3), female might picks up more than one spermatophore if male deposited several in his courtship. The spermatophore shape is similar to C. orientalis. Males bit the belly after her pick-up spermatophore and she remained stationary (Fig. 1d). Female did not show any interest and even frightened in male once she was inseminated. The successful proportion of spermatophore picking-up was relatively rare (2.7%, Table 2), but slightly higher than that recorded in C. orientalis (1.1%). The competitions and interferences behaviors were found from potential male rival during courtship.