The biodiversity of mountain rain forest in Diaoluo Mountain was studied by using diversity indices,species abundance relation,spatial pattern diversity,temporal pattern diversity and compositional pattern diversity. The Shannon Weaver and Simpson indexes is 4 195 and 0 021 respectively,the evenness is 0 880 and 2 962.The species abundance relationship fits logarithmic series distribution.The distribution of species is random form of the spatial pattern diversity,and intrinsic diversiti...