Abstract: In order to prove the understanding of moss ecology,distribution patterns of Petrophytia were investigated,based on patchy and ecological theory,for five different habitats of evergreen broadleaved forest at Longwangshan.The results showed that α & β diversity indexes(e.g. H’?D?β R?β c?β T?C J?β CJ )were closely related with degree of disturbance and obviously appeared gradient change,which well indicated the habitat heterogeneity.Diversity analyses of α & β could be used in investigation of species structure and evolution at patchy level.