Abstract: Xianglushan Tungsten Deposit is a super-large skarn-type scheelite deposit. The major ore bodies of this deposit are found in the contact zone between a Late Yanshanian granite body and the impure limestone of the Middle Cambrian Yangliugang Formation which makes the core of the Xianglushan Anticline. The W contents in the granite are over 50×10-6. The average δS34 value of ore is +3.4 ‰. The ore formation process mainly occurred in the skarn stage, and in a lesser amount in the sulfide stage.The major ore-forming controlling factors are anticline structure with its accompanied interlayer slipping planes, S type granite with higher W concentration, and Middle Cambrian impure limestone country sediments. The major hydrothermal alterations are skarnization, hornfelsization, silicification, greisenization, chloritization and fluoritization. These hydrothermal alterations and pyritization, sheelitization, wolframitization and their oxidation products are direct ore prospecting criteria.