Abstract We used behavioral sampling to investigate mating behavior and copulatory patterns of 7 semi-free-ranging Amur tigers (Panthera tigris altaica;4 males,3 females)housed in a 2 ha enclosure at the Taishan Amur Tiger Park. We observed no copulatory locks during 22 days of observation;males usually ejaculated following a single intromission after several thrusts. Approximately 74% of ejaculations within a 1-hour period were repeated ejaculations. Amur tigers had a copulatory pattern with no lock,thrusting,multiple intromission,and a single ejaculation,consistent with No 11 in Dewsbury’s copulatory-patterned system. Females averaged 28 ±3 sexual solicitations/day,lasting 20.0 ± 1.2 seconds. Males averaged 14 ± 1 mounts of females/ day. The mean duration of thrusting was 20.9 ± 0.5 seconds,and the mean mating duration was 45.2 ±1.3 seconds.