The urbanized area of Ha Noi city is associated with road building, that caused the considerable changes in agricultural areas, such as separation of large agricultural ecosystems into smaller ones. This problem has a direct effects to species number of Hymenoptera and Coleoptera and their populations living in agricultural ecosystems. This article is the result of a survey of agricultural ecosystems are divided into smaller areas in the procress of urbanization of Hanoi. the investigation showed that the species composition and population size of 6 families: Braconidae, Ichneumonidae, Apidae, Halictidae, Megachilidae and Scoliidae (Hymenoptera) in habitats close to newly built roads lower than those recorded in habitats far from newly built toads. The total of 25 species with 148 individuals were recorded in the habitats close the newly built roads compared with 35 species with 267 individuals (6 families) in habitats far from the roads. The similar results were observed with species of 4 families of Coleoptera order such as Carabidae, Cicindelidae, Coccjnellidae and Staphylinidae. In habitats close to newly built roads, there were 682 individuals of 13 species compared with 787 individuals of 20 species in habitats far from newly built roads. However, the Harmonia octomaculata species (Coccinellidae) seemed to have no change contrary with most of species of Coleoptera order.