Characteristics of soil fauna communities in Heptacodium miconioides woodland (Hmw) in Tiantai Mountain, Zhejiang were investigated monthly from April 2000 to April 2001, to study influences of litters, season, altitude, and some other factors on structure of soil fauna community. Results show 1) Acarina and Collembola were the dominant groups in Hmw accounting for 57.06% and 21.21%, respectively, while Hymenoptera, Diptera, Symphyla, Oligochaeta and Coleoptera were the common groups, accounting for 4.72%, 3.65%, 2.74%, 2.68% and 2.57%, respectively. 2) The number of individuals of soil fauna peaked in May and November, while it declined distinctly during the xerothermic period (from July to August) in the three plots of Hmw. 3) The soil fauna of Plot P2, which is located in an area moderate in altitude, and showed co-dominancy in community, was the highest in density, number of groups and diversity index among the three plots of Hmw. 4) The vertical distribution of soil fauna showed a distinct characteristic of surface accumulation in the three plots, however, the number of individuals of soil fauna in the deep layer more than surface layer during the xerothermic period (from July to August).