Abstract：Geochemical rock survey section from Guxian Reservoir to Quanbao Mountain is located in the Shagou-Longmendian Ag polymetallic ore concentration area of western Henan Province. The obvious anomalies of Au, Ag, Cr, Co, Cu and Pb were found about 6.0km to 10.0km in length along the section. The anomalies of Cr and Co along the geochemical rock survey section are important clue to finding new type deposits. On the basis of the metallogenic theory on the transmagmatic fluids, the result of geochemical rock survey section from Guxian Reservoir to Quanbao Mountain becomes new significant evidence to prove the geological model of concealed magma-fluids interactivities (transmagmatic fluids) related to Ag polymetallic mineralization. The results obtained by the authors are important in search for concealed igneous bodies and ore bodies in the depth under 6.0~10.0km in geochemical rock survey section, and also of great significance in finding new type deposits, such as pegmatite-type Au deposits and porphyry-type deposits in the Shagou-Longmendian Ag polymetallic ore concentration area.