The condition of gold geological mineralization in the Xunke-Jiayin-Luobei area of northern Xiao Hinggan Mountains is very favorable.Because of the heavy surface coverage,geological work in the area has made no breakthrough in recent years.To accelerate the process of gold ore prospecting, the authors,based on probing into the relationship of geological,geophysical and geochemical information to lead-gold mineralization in northern Xiao Hinggan Mountains,extracted and constructed 14 evidence layers,such as fracture buffer,Early Yanshanian intrusive rocks buffer,Late Yanshanian intrusive rocks buffer,alteration remote sensing anomaly,geochemical anomaly and magnetic anomaly through a spatial analysis of the GIS system.Gold potential was calculated by the evidence weight model.According to the prediction,nine classⅠprospective areas,nine classⅡprospective areas and fourteen class Ⅲ prospective areas were delineated finally.The prospective areas have almost covered all known gold deposits.The results achieved by the authors have some indication significance for further ore-prospecting work in this area.