From1998to2001,we studied the ecological characteristics of soil animal resources in the Yunshan National Forest Park of China.Of the9769total soil animals,the invertebrates include31genera in13classes and6phyla.Almost all subtropical soil animals are found to be distributed in Yunshan National Forest Park.Among them,Acarina,Collembola and Nematoda are dominant species;Hymenoptera,Diplura,Protura,Enchytraeidae and Diptera are common species;and the rest is rare species.Analysis and comparison of the community ecosystem of soil animals indicate that affected by terrestrial biodiversities,there are abundant soil animal species with complete primitive community structure,apparent zonal transitivity of faunal composition and mountaintop Arthropoda of individual partial heavy ecological characteristic.The research results show that the Yunshan National Forest Park situated in Nanling,Xuefengshan and Yunnan-Guizhou Plateau,the three different kinds of mountain system of China,is not only a surface bio-ecological gene pool with rich resources but also an extremely precious underground bio-ecologi-cal gene pool.