Abstract:This paper takes deep geological specific mining conditions of deep mining in Kunyang phosphate mine of Yunnan phosphate group corporation as engineering background. through to the occurrence characteristics of the ore body mining technical conditions of theoretical research, to analyze the deep ore body mining methods. The results prove that: Most of the ore-body resources in first to fourth mining area is fit to take the mining way of open pit mining. Due to the deep ore resources of it is less and the mining technology conditions is poor, it is not fit to take the mining way of underground mining. And the upside ore-body resources in the second mining area is fit to take the mining way of open pit mining, the underground mining way of the downside ore-body resources in the second mining area is a feasible.The related results provides certain reference for the mining way of the deep mining of Yunnan phosphate group corporation and similar conditions of open pit mining of phosphorus mine.