///TEM profiles at the scale of 1∶10 000 were chosen through the analysis on the ore forming conditions of the Boka gold deposit combined with geological and tectonic characteristics of the region and geophysical features of the strata. A horst between major fractures was interpreted which was compared and analyzed with the existing orebodies and the control function of the faulted structures for spacious distribution of the orebodies (mineralization) was testified and figured out. This study forecasted the core of the horst structure and the depth of western prospecting area as the key target areas for further ore prospecting. The TEM method has a remarkable effect in ore forecasting in the Boka gold deposit. The exploration experience is worth learning.