Abstract:The Youneng lead zinc mine controlled by fracture in the town of Congjiang belongs to low-middle temperature hydrothermal deposit, which develops the NW and SN two groups’ fractures. The NW pressure-shear Dangniu layer is the ore control fault, which is the main ore controlling structure. Cystic and lenticular orebody mainly occurs in Jialu Formation and Wuye Formation. This paper discusses the characteristics of mineralization from the two aspects, i.e. the ore characteristics and the ore fracture characteristics. The orebody is strictly controlled by faults. Mineralization of the deposit is divided into four phases, among which the Ⅱ stage and the Ⅲ stage are the main mineralization stages. The study finds that there is a positive correlation between the gouge thickness, the orebody thickness, and the ore grade. Orebody has swollen pinched features.