Abstract: Dajishan and Piaotang are two large tungsten deposits in southern Jiangxi Province，which are all related to granites of continental crust remelting type．Besides W as major product, the Dajishan deposit is also a deposit of Ta and Nb，whereas the Piaotang deposit is rich in Sn，Mo，and Ag．Major and trace element geochemistry of these two granites is studied ．Both granites are Si02, rich and peraluminous，higher in alkalies ，and rich in F and incompatible trace elements．However，the comparison between them shows that the Dajishan granite was formed by more highly evolved magma than the Piaotang granite． This might be the key factor that controlled the different metallogenic characteristics of these two deposits．The commonly used terms such as W-bearing granites ，Ta-Nb-bearing granites ， an d Li-F granites ，as well as the geodynamic setting for the granites ，is also briefly discussed in this paper