Abstract: According to the train of thought “structure controls basin, basin controls facies and facies controls ore deposit”, the authors studied metallogenic conditions of lead-zinc deposits such as sedimentary basin, ore-bearing formation, ore-controlling structure, lithofacies and paleogeography, analyzed metallogenic characteristics and summed up the ore-forming regularity. In Dengying period, NE- and NNE-trending contemporaneous faults were developed on the Chuanxi-style basement in the northwest margin of Yangtze plate and, as a result, nearly NE-trending second-order basins and platforms were formed, which constituted the structural framework. of the platform alternate with the basin. The second-order basin was characterized by infratidal zone sediments of restricted basin, slump dolorudite appeared on the marginal slope of the platform, and ore-bearing hydrothermal fluids that migrated along contemporaneous faults were concentrated in brecciform marble to form ore deposits. Studies show that lead-zinc mineralization of Dengying Formation was obviously controlled by such factors as semi-active type basement of the basin, second-order basins in magnesian carbonate rock platform and contemporaneous faults that control the second-order basin.