Abstract: Luyuangou Gold Deposit is located in the Xiongershan gold-silver polymetallic high ore concentration area in the eastern part of the Xiaoqinling-Xiongershan gold metallogenic belt.In the study,which takes the tectonic altered lithofacies as the research object,investigates structural deformation and mineral assemblage in macro and micro scope and proceeds based on previous research results in this area,the main understandings are as follows:Luyuangou Gold Deposit was formed in a tectonic transformation from compression to extension-tension;the ore-forming fluids are characterized by rich alkali and high oxygen fugacity and derived from magma.The genesis is classified as orogenic gold deposits.The deep part,west side of the 2# dyke and the EW-trending northward dip fault structures are the main targets for further prospecting.