[Objectives]  Different habitats have different dominant insect groups. Based on the results of insect collection in Yanqing District of Beijing, the objective of this study was to analyze the relationship between insects and their habitats. [Methods]  From September 2017 to August 2018, insects were collected in the Yanqing District of Beijing using the four sampling methods of sample line transect, Malaise trap, light trap, and trap with mixture of sugar and acetic acid and water. The species and number of collected insects from the respective habitat type were identified and counted by habitat types. [Results]  During the whole sampling period, a total of 25 885 insects belonging to 15 orders and 132 families, a total of 379 species were collected fromYanqing district of Beijing. The most collected insects were Diptera (27.12%), followed by Hemiptera (25.25%). The order of these sampled habitats based on the collected insect abundances was following as wetland > farmland > grassland-shrub > forest > afforestation; The order of these sampled habitats based on the family number of collected insects was following as farmland > wetland > forest > grassland-shrub > afforestation. Moreover, there was significant difference in the Margalef richness index of insects among different habitats in Yanqing district of Beijing (F=22.15; P< 0.01), the order was following as wetland > afforestation > forest > grassland-shrub > farmland; and the order of these sampled habitats based on the Evenness index of insects was following as wetland = forest > grassland-shrub > afforestation > farmland. Furthermore, there were significant difference in the insect diversity index H' among different habitats (F=25.50; P<0.01), and the order was following as wetland > forest > afforestation > grassland-shrub > farmland. And there were significant differences in the insect dominance index (F= 20.6; P< 0.01), and the order was following as wetland > forest > afforestation > grassland-shrub > farmland. In the survey of Yanqing district of Beijing, the insect Similarity coefficient between the five types of sampled habitats was between 0.25 and 0.50, which was shown as the low,.with the exception of wetland and grassland-shrub, which were lower (0.185 1). [Conclusion]  He results show that insects have specific selection tendency in response to different habitats. Areas with few people involved, such as wetlands and forests, are rich in insect species and abundances, and simultaneously have good community stability. So the protection of insect diversity in Yanqing district of Beijing should first take measures in wetland and forest areas.