Abstract: Ten species of Chalcidoidea reared from bamboo gall in Zhejiang Province are described, i. e. Aiolomorphus rhopaloides Walker, Diomorus aiolomorphi Kamijo, Eupelmus urozonus Dalman, Homoporus japonicus Ashmead, Megastigmus sinensis Sheng, Norbanus aiolomorphi Yang et Wang, Ormyrus punctiger Westwood, Sycophila sp., Tetramesa bambusae Philips(new recorded from China), Tetramesa phyllostrachitis Gahan. Only Aiolomorph rhopaloides Walker, Tetramesa bambusae Philips and Tetramesa phyllostrachitis Gahan being phytophagous and harmful to bamboo by forming galls, other species could be parasitoids or inquilinous. All specimens of the species above mentioned are deposited in Department of Plant Protection, College of Agriculture and Biotechnology, Zhejiang University.