The discovery of superlarge silver-lead-zinc deposits in Bairendaba and Weilasituo is the newest achievement in ore-prospecting work in Inner Mongolia. It is a typical case of utilizing integrated geophysical and geochemical methods to find superlarge ore deposits in the past fifty years. The prospective reserves are Ag>8 000 ton, Pb+Zn 3 million ton in the Bairendaba ore district, and Ag>2 000 ton, Pb+Zn+Cu 3 million ton in the Weilasituo ore district. These two ore districts might be developed into superlarge silver polymetallic ore fields. All these achievements have opened up a brilliant vista in mineral resource exploration and evaluation along the central south section of Da Hinggan Ling region.