Abstract: Deep penetration exploration pattern is the effective way of looking for the concealed polymetallic orebody.The high precision gravity measurement,controlled source audi-frequency magnetotelluric (CSAMT) and structural fissure geochemical survey method are applied comprehensively so as to make a large depth detection of concealed orebody（rock mass）.According to the difference of structure between rock(rock)stones and the surrounding rocks,the deep rock mass which is related to mineralization and fracture space position are inferred and interpreted.The research results in this paper has a guiding role for delineating deep prospecting target zone and evaluating resources quantitatively.

Key words: Deep penetration exploration pattern, Concealed polymetallic orebody, High precision gravity measurement, CSAMT, Structural fissure geochemical survey method