Abstract:In 1985-1989 the author collected about a thousand of spider specimens from bamboo forest of Mogan Mountain in Zhejiang Province. A tatol of 105 species belonging to 26 families, 74 genera were identified, in which the anyphaenidae is the first record from China. Stratification of the spiders in bamboo forest shows remarkable differences.All the spiders control to a certain extent pests such as bug(Hippota dorsalis), aphid, mosquito, fly, etc. The number of spiders and their species are higher in bamboo-tree mixed forest than those in pure bamboo forest.