Biolog method was applied to studies on microbial community and functional diversity in soils in and around Aberdeen City.Results show that compared with rural soils an obvious changes in microbial tommunities and functional diversities can be observed in urban soils under the press of heavy metal accumulation in the orbit environment.Microbial consumption of carbon sources in urban soils is much more and faster than that in rural soils.And their major carbon sources have shifted from sugar,ammo acid in the rural soil to phenolic acid in the urban soil.Further more,canonical variate loadings in different incubation time point give the obvious discrimination of cluster distribution between urban and rural soils.