Abstract: In order to study the activity rhythm and interspecific relationship between Gallus gallus and Lophura nycthemera in Nuozhadu Provincial Nature Reserve, 40 trigger infrared cameras were installed in Nuozhadu Nature Reserve from May 2019 to May 2020, and two kinds of wild animals Gallus gallus and Lophura nycthemera were monitored continuously for one year. According to statistics, 40 infrared cameras worked for a total of 12283 working days. From the 93 independent effective photos of Lophura nythemera, we identified 46 females,76 males and the sex ratio was(F:M=1:1.65); from the 43 independent pictures of Gallus gallus, we identified 17 females,44 males and the sex ratio was(F:M=1:2.59). The results of daily activity rhythm analysis showed that the two pheasants were diurnal activity patterns. In which the activity time of the Gallus gallus was 6:00-20:00, with three peaks at 7:00-8:00, 11:00-13:00 and 14:00-19:00,the activity time of the Lophura nythemera was 6:00-20:00, with three peaks at 8:00-10:00, 14:00-15:00 and 16:00-19:00. The activities of Gallus gallus were more frequent from March to May, Lophura nythemera were more frequent from January to May, and the rest of the time was less. There was no strong interspecific association between Gallus gallus and Lophura nythemera, and the encounter rate was low. Although the daily activity rhythm and monthly activity rhythm was similar, the off-peak activity was used to reduce the direct interspecific competition.