The ore area of Yudu Ganxian is an concentration area with better prospecting potentiality for tungsten, gold, silver, copper, lead, zinc deposits in Eastern Nanling Range. Because the granite and mineralization relate closely, and the fault structure often follows rock and ore controlling structures. Therefore, the system exploration the granite and faults distribution in this area is one of the key problems for further prospecting. In this paper, we deduced the granite and faults distribution characteristics by a comparative study of the distribute characteristics correspondence among the gravity and magnetic field, exposed granite and exposed faults in this area. The result indicates the granite distribution obtained by gravity data reaches better result and is of high efficiency, while the magnetic data can only be used for magnetic granite inference, and the results of hidden granite body size is about 2 times than the exposed granite. We inferred nine first order and forty nine second order faults by the gravity and magnetic data. The study result of granite body and faults distribution shows that the faults play a major role in controlling the development of granite. These results above provide geophysics ground to further investigations for deep rock and ore controlling structures in concentrated region.