The successfully exploration of Shimensi super-large tungsten deposit, Dahutang area, Wuning County, Jiangxi Province, is an important discovery of the geological prospecting work in China. The mineralization type of the deposit is divided into veinlet-disseminated type, cryptoexplosion breccia type and quartz thick vein type. The host rock of the veinlet-disseminated type deposit which accounting for about 14.86% of total reserves, are the late Jinningian biotite granodiorites and the mineralization mother rock are the middle stage of Yanshan solid plutonic-hypabyssal granites. The orebodies are thick with gentle occurrence and appromately parallel to the contact surface of biotite granodiorite and the top of porphyraceous biotite granite stock.