Abstract: Taking Xiadian Gold Mine as an example,this study utilizes 3DMine,a 3D mining software,to establish a drilling database.By using exploration line cross-sections and delineating the outlines of ore bodies,a three-dimensional ore body model is constructed to estimate mineral resources and analyze the occurrence of ore bodies at depth.The 3D mining software enables visualization of mineral resources and provides guidance for mining production,as well as serving as a basis for model data for subsequent exploration work in the mine.