Abstract: Bird diversity in the Qilihai Lagoon wetland of Qinhuangdao was investigated with line transects and variable circularplot methods during nonbreeding seasons from September 2016 to April 2017. A total of 60 species belonging to 13 orders and 27 families were recorded. Among the 60 species, 14 species in 10 families were Passeriformes, accounting for 23.33% of the total. The other 46 species in 17 families accounted for 76.67% of the total. Waterfowl population made up 95.11% of all the species and most of them were gulls and ducks, followed by waders and herons. For the residential types, passing migrants and summer migrants were the most abundant species, accounting for 35.00% and 33.33% of the total, respectively. In the avian fauna, Palaearctic realm species and widespread species accounted for 63.33% and 26.67% of the total, respectively. Based on the statistical analysis, ShannonWeaver diversity index, Pielou evenness index and Margalef richness index averaged 1.86, 0.39 and 2.31, respectively. The Qilihai Lagoon wetland, located on the east AsiaAustralasia migration route, is an important stopover and foraging site for migrating birds, especially for waterfowls. Thus, it should necessarily be concerned and protected.