The Pb - Zn deposit is in the ore - bearing limestone of Upper Triassic Sanhedong Formation Lower Member (T3s1 ) and nearly NS, NNE, NW fault fault fracture zone. A few are in the nearly EW joint fissure. It is a Pb - Zn multimetallic deposit of middle - low T hydrothermal type in genesis, which is controlled by horizon and structure with multiple metallogenetic stage and material source.