The main types of beryllium deposits in Yunnan Province include pegmatite type, magmatic-hydrothermal vein type, altered granite type and greisen type. The pegmatite type, magmatic-hydrothermal vein type and altered granite type are the most important types of deposits, which account for more than 95% of the total resources of beryllium in Yunnan Province. These deposits are closely related to the high-differentiation granite of crust source and mostly distributed in Gejiu and Dulong regions in southeast Yunnan as well as in Gaoligong Mountain and Shangri-la regions in western Yunnan. The deposits were formed in the late Cretaceous in southeast Yunnan and Oligocene in west Yunnan. Beryllium mineralization in southeast Yunnan resulted from a response to lithospheric extension in western South China in late Yanshanian period. The geodynamic background of beryllium minerali- zation in western Yunnan seems to have been the collision orogeny between the Indian and Eurasian continents. In this paper, the authors propose three prospecting areas, namely Gongshan-Tengchong-Yingjiang, Longling and Maguan-Malipo prospective areas. In the three prospective areas, researchers should focus on finding pegmatite-type beryllium deposits.