Seven species of the genus Opopaea Simon, 1891 from Xishuangbanna Rainforest, Yunnan, China are recognized, including six new species: Opopaea auriforma sp. nov. (male, female), Opopaea cornuta Yin & Wang, 1984, Opopaea flabellata sp. nov. (female), Opopaea macula sp. nov. (male, female), Opopaea rigidula sp. nov. (male, female), Opopaea semilunata sp. nov. (female), and Opopaea zhengi sp. nov. (male, female). Morphological descriptions and illustrations of all the six new species are given. All the types are deposited in the Institute of Zoology, Chinese Academy of Sciences in Beijing (IZCAS).