From December 2014 to December 2016, a grid-type infrared camera method was used to study the distribution and activity patterns of Cervus pseudaxis in the Qianqingtang area of the Qingliangfeng National Nature Reserve in the Zhejiang Province. The results showed that Cervus pseudaxis in the Qianqingtang area was distributed in the core zone, buffer zone and experimental zone, and had the highest shooting rate (10.32%) in the high-altitude area of 1200-1300 m, followed by that in the area of 700-800 m, while the lowest rate was in the low altitude area of 600-700 m. Among the 6 different vegetation types, the highest shooting rate (4.60%) was found in the deciduous broad-leaved forest, followed by coniferous forest, while the shooting rate in the evergreen broad-leaved forest was the lowest. There was a significant difference (P < 0.01) in daily activity difference index α among Cervus pseudaxis individuals. The average α value in winter was significantly higher than that in the other three seasons, which indicates that the activity time of Cervus pseudaxis in winter is not uniform compared to that in the other seasons, and the activity time is more concentrated during winter. There was a significant difference in the daytime index β among Cervus pseudaxis individuals (P<0.01). The average value of β in each month of the year was 0.60>13/24, which indicated that Cervus pseudaxis is a diurnal animal. Using the seasonal activity intensity index γ, it was found that there were two troughs (10:00-11:00 and 19:00-20:00) in the four seasons for Cervus pseudaxis. There was no significant difference in the γ values (P>0.05) and there were three daily activity peaks (7:00-9:00, 12:00-14:00, and 17:00-19:00).