通过对滇东地区含磷地层的划分和对比，认为渔户村组小歪头山段和雨碌段（待补段）分别代表一级碳酸盐磷酸盐台地上二级台地和台凹相区的同时异相沉积。晋宁、安宁地区中谊村段的白泥层与中白云岩层为上下关系，中白云岩层为上磷矿层下部的相变。根据２０条含磷地层剖面的地层相分析进行相区划分，并作出中谊村段下磷矿层和上磷矿层两个沉积时期的岩相古地理图。 Based on the division and comparison of phosphorus-bearing strata in eastern Yunnan, it is concluded that the small Wutoushan section and the Yulu section (to be complemented) of the Yuhuocun Formation represent the second-level platform and the concave-concave phase of carbonate carbonate platform Area at the same time heterogeneous deposition. The Jinnian and Anning areas are closely related to the middle dolomite layer in the Zhongyi section of the Anning area, while the middle dolomite layer is the lower phase transition in the upper phosphorite layer. Based on the analysis of stratigraphic facies analysis of 20 phosphorus-bearing stratigraphic sections, the lithofacies palaeogeography maps of two sedimentary periods of the phosphate rock and upper phosphate rock formations in Zhongyicun are made.