Abstract: In order to understand the diversity of terrestrial birds and mammals, the entire area of Chun’an County was divided into grids of 10 km×10 km, 51 working grids were selected on the basis of principles such as full coverage, prominent focus, habitat representativeness and road accessibility, and 120 infrared cameras were deployed for species monitoring from July 2021 to November 2022. The results indicated that 9 111 effective photos had been obtained with birds accounting for 26.37% and mammals accounting for 69.07%. Thirty-four species of birds belong to 26 genera, 14 families, 5 orders, and 25 species of mammals belong to 23 genera, 15 families, 7 orders, including three species of Class I state key protected wild animals, Manis pentadactyla, Syrmaticus ellioti and Muntiacus crinifrons, and eleven species of ClassⅡstate key protected wild animals, Pucrasia macrolopha, Lophura nycthemera,Otus lettia, Garrulax canorus, Garrulax berthemyi, Leiothrix lutea, Macaca mulatta, Ursus thibetanus, Martes flavigula, Prionailurus bengalensis, Capricornis milneedwardsii. Based on the RAI(relative abundance index)）≥ 1, three species, Lophura nycthemera, Paguma larvata and Muntiacus reevesi, are terrestrial dominant. Five species with the highest RAI in the Qiandao Lake reservoir area are P. macrolopha, L. nycthemera, Sus scrofa, M. reevesi, and Callosciurus erythraeus, five species with the highest RAI in the no-reservoir area are L. nycthemera, Arctonyx collaris, P. larvata, Sus scrofa and M. reevesi, their similarity reaching 49.15%. However, the RAI of the same species in the reservoir area is very significantly lower than that in the no-reservoir area, therefore, the reservoir area has a significant impact on terrestrial birds and mammals, and it is of necessity to strengthen the monitoring and protection of wetland resources in the reservoir area.