This paper deals with historical background of insect biogeography,evolution of land insect geographical regions throughout the world and the characters of each region。 In the first part,the author summarized the developmental history of insec biogeography based on the data in 1857-1984 with some examples.Results show that the theories and conclusions in insect biogeography have been changing con(?)tantly since 1857,especially alter theory of continental drift was verified 15-25years ago,one witnessed a gre...