Abstract: Taking into consideration the cores from two deep drill holes in the Tongyu Gold mine area of the Shaanxi Xiao-Qinling gold mine field,this study aims to systematically examine and analyze the composition,size,and gold content of various rocks in the deep orefield.The objective of this study was to enhance the metallogenic model of the gold ore field.This study addresses the lack of data concerning the lithologic assemblage and gold content in the deep part of the ore field.Furthermore,this study investigates fluctuations in the abundance of gold elements and discusses the potential implications for ore prospecting.This breakthrough will provide essential data and a solid scientific basis for future research in this field.