In order to determine gold metallogenic age in the Hadamengou Gold Field,the characteristics of gold ore(mineralization) ore body and their interpenetrating contact relationship with rock body in the field are observed systematically in field.And with metallogenic age dating results for the last 30 years,the metallogenic age in the Hadamengou Gold Field is determined in a relatively precise way.The gold ore(mineralization)body type in the Hadamengou Gold Field includes potassic feldspar vein type,quartz vein type,quartz-potassic feldspar vein type and altered gneiss type; among them,the quartz vein type and potassic feldspar vein type have regular gold content heterogeneity,confirming that the formation of quartz vein and the formation of potassic feldspar vein are two-stage diagenesis rather than two-stage mineralization process.Besides,thermal events such as regional metamorphism and structural metamorphism all left age footprints in the later formed gold ore(mineralization) bodies,leading that the current data of gold mineralization age are in large volumes and wide span（132-387）Ma.The black narrow strip of mineral materials outcropping from the surface gold ore(mineralization) body intruding quartz veinlets and potassic feldspar veins has also become a strong evidence of one-stage gold mineralization rather than multistage gold mineralization,and of the fact that the gold mineralization occurred in the later stage.The regional metallogenic characteristics are comprehensively analyzed,and based on that,it is considered that the gold mineralization age of Hadamengou Gold Field is Yan-shannian period(132 Ma±2 Ma).