Abstract: By to investigation of Festca arundinacea turf Insect comunities in main cities of North of Henan Province. The results show that these insect could be divided into 98 species belonging to 42 families within 10 orders and that there were 62 species of pests and 30 species of natural enemies and 6 species of other insects in their comunities. The dominant species of pests is differential in the various seasons: Macrosiphum avenae and Rhophalsiphum padi is dominant species in spring, Delphacidae and Laphygma exigua is dominant species in summer, Helticus minutus and Acrididae is dominant species in autumn. The dominant species of pests are main objects in IPM.