Abstract: From March 2015 to February 2016, the community structure and diversity of birds at Tianjin Binhai International Airport were investigated by using a fixed radius point count method and line transect method. The results showed that 52 bird species were recorded at Tianjin Binhai International Airport, belonging to 31 families and 12 orders. They included 7 resident species (13.46%), 17 summer migrant species (32.69%), 5 winter migrant species (9.62%) and 23 passing migrant species (44.23%). Among these species, 8 species were widely distributed, 6 species were dominant. Based on the effects of flying height, the weight and quantity of birds, the frequency of occurrences and habitat utilization on flight safety, risk levels of birds were evaluated, and the results indicated that there were 3 serious threat species, Falco tinnunculus, Pica pica, and Passer montanus. We also found that the diversity index was the highest in autumn, and the dominance index was the highest in spring. The diversity index and evenness index were both highest in the wetland reed habitat, the dominance index was the highest in the building area, and the similarity of bird communities was the highest between communities from the airport enclosure and airport building areas. In this study, we compared bird diversity in different seasons and in different habitats, and explored habitat characteristics associated with different bird species in the flight zone, and bird distribution and activity patterns, thereby providing a basis for avoidance of bird strike at the airport.