Abstract: To investigate bird diversity in Leshan Airport, the species,number and environmental factors of birds within 50~100 m of the sample line were recorded by line sampling method and point sampling method in spring and autumn of 2018. The results showed that a total of 49 species of birds were recorded,belonging to 30 families, 9 orders,including 10 rare species (20.41%), 31 common species (63.27%) and 8 dominant species (16.33%).In spring,the similarity between farmland and villages was the highest (0.48).In autumn,the similarity between farmland and wetland was the lowest (0.07).The bird diversity of farmland in spring and autumn was higher than that of other habitats, which were 2.377 and 2.573,respectively.The bird number and species of farmland were both higher in spring than those in autumn; the bird number of villages was larger in autumn than that in spring, but there were more species in spring than in autumn; the bird number and species in wetlands were higher in spring than those in autumn. Overall, there were more birds in farmland in spring.