Abstract: Through geological survey, UAV aerial survey, sampling analysis and other technical methods and means,the limestone mine occurring in the Wufeng Mountain area of Qianxian County was investigated, including stromatolite limestone horizon, spatial forms, sizes of ore bodies, material composition, texture and chemical composition. Based on topographic mapping by means of UAV and other ore exploration projects, the deposit reserves are estimated and mining technical conditions in this area are also discussed in this paper.