Abstract:Phosphate ore is an important strategic mineral resource, and its guarantee degree is related to national resources, energy and food security. Phosphate ore resources in Yunnan Province occupy an important position in the country, with the characteristics of concentrated distribution, simple deposit types, large and medium-sized deposit are abundant, good ore quality and easy mining. With the major breakthrough in mineral prospecting of the Yangchang phosphate deposit in Zhenxiong area in recent years, phosphate ore in Yunnan Province has become one of the hot spots in mineral deposit research. This paper systematically sorted out the types and resource reserves of phosphate ore deposits in Yunnan Province, selected typical deposits of different deposit types for detailed dissections, systematically summarized the metallogenic laws from the aspects of spatial and temporal distribution charac- teristics, ore-bearing rock series characteristics, etc., improved the sedimentary phosphate ore mineralization model in Yunnan Province on the basis of the Yangchang phosphate deposit research, and combined with the results of potential evaluation, delineated 8 key prospecting potential areas. It provides the direction for phosphate rock prospecting in Yunnan Province in the future.