Abstract:Shorea chinensis forest distributing in Xishuangbanna, S Yunnan, is a forest type of the seasonal rain forest from northern edge of tropical zone of SE Asia. In comparison with various representative tropical rain forest communities, it is indicated that the forest has the same community profile as lowland tropical rain forests, the similar life form spectrum, leaf scale spectrum and leaf type and texture composition to equatorial rain forests, as well as al-most the same species diversity, frequency of the tree D. B. H. class and relationship between individuals / species as typical tropical rain forests.