The Qinhang belt is located along the Qinhang (Qinzhou Bay to Hangzhou Bay) or Shihang Shiwandashan Mt. to Hangzhou Bay) Neoproterozoic suture in South China, which separates the Yangtze craton and Cathaysian Blocks. Based on the previous researches, the authors recognize these deposits in two episodes, i.e. Neoproterozoic marine exhalative Cu-Zn deposits, and Yanshanian granitoids related W-Sn-Cu-Pb-Zn deposits. The large-scale Late Jurassic granite related W-Sn deposits associated with the crust-source granites with input of the mantle substances at 160~150 Ma, which are inferred to be the result from subducted plate window in the central part in South China and bounded in west by the Qinhang suture, where a lot of large and supper large tin and tungsten deposits developed.