Through geological mapping, trenching, drilling, and indoor analyses, the Heiniudong CopperZinc Deposit was a large or even superlarge marine volcanicassociated massive sulifide deposit (VMSD) in the passive continental margin rift during the middle Proterozoic. The orebearing country rocks contain mylonites, phyllonite, mylonitic shists, quartzblastic mylonites, and tectonites, with orebodies hosted in sheartype mineralization and alteration zones. The primary rocks are quartz sandstones, mudquartz siltstones, argillites, and siliceous rocks, intercalated with mafic rock and minor intermediateacidic, acidic volcanic rocks, and are characteristic of high greenschist  low amphibolite facies by metamorphism. The deposit dominated by massive, paramassive and brecciated ores is enriched in copper, with an average Cu grade of 1.68％ and an average Zn grade of 1.53％. Mineralization is closely related to bleached zone and silicification. Mineralization is characterized by extensivelydeveloped ductile sheartype disseminated rock or ores and is of the same deformation features as mylonite and phyllonite. Multiple mineralized metallic lens, deformation bands and microfolds can be found in the ores. Texture and structure of the ores, and their spatial and temporal distribution, and H, O, S, Pb and Si isotopic features show that massive, paramassive and breccias ores are sheartype mineralized rocks or ores, suggesting that the deposit is a metamorphosed deposit, i.e. a reactivated deposit from primary ores. The sheartype mineralized rock or ores are likely a dissolutiondominated reactivated residual of the VMSD deposit which underwent multiple ductile deformation and metamorphic deformation due to middle Proterozoic submarine volcano and rifting. The deposit is characterized by insite ductile deformation and metamorphic regeneration, with the mineralization age in late Yanshanian epoch (134.26±0.5Ma).