Birds at airports are usually responsible for air accidents, and decreasing number of birds around airports is commonly argued to ensure safety of aircrafts. We examined composition, quantity and seasonal variation of soil and grassland fauna communities in three habitats at Gaoping Airport, through ecological investigation during April- December 2007, and conducted a preliminary correlation analysis between the soil or grassland fauna and the birds. Totally, 25 groups of soil fauna were found, of which, Acarina, Protura and Nematoda were the main ones, constituting 71.88% of the yearly total catches. In addition, common groups included Collembola, Enchytraeidae, Gastropoda, Hymenoptera, Diptera, Coleoptera, Earthworm, Araneae and Orthoptera, making up 22.84% of the total. 21 groups of grassland fauna inhabited the airport, of which, Hemiptera, Araneae, Diptera and Gastropoda were dominant,making up 65.7% of the total catches. Orthoptera, Coleoptera, Homoptera, Hymenoptera, Lepidoptera, Dermaptera and Collembola were common, too. Correlation analysis found a significant relationship in variation between soil fauna, glassland fauna and raptor. The abundance of Orthoptera was positively correlated with number of raptors (Pearson correlation analysis, r = 0.910, P = 0.032). Orthoptera and Gastropoda were the main foods for raptors, contributing to the increased raptors. Reducing grass height, removing plant remains and garbage, and using pesticide to control density of grassland fauna were recommended to decrease number of raptor birds around the airport.