The Jinchangliang Gold Deposit is a newly discovered deposit in the northeast part of Chifeng-Chaoyang gold metallogenic belt in recent years.The ore bodies are distributed in NE-trending and near EW-trending faults of the gneiss complex cataclastic belt of Jianping group in the outer contact zone of Damiao monzogranite.They are mostly exposed as dikes and composed of sulfide quartz veins and altered rocks.The wall-rock alterations mainly include silici-fication,beresitization,chloritization and kaolinization.By collecting the datum of chronology,petrogeochemistry,metal-logenic fluid and stable isotopes of metallogenic rock body,the diagenetic and metallogenic epoch,tectonic setting,metallogenic material source and genesis of deposit are discussed.The Zircon U-Pb age of the Damiao monzogranite is 245 Ma±1 Ma,which is an early Indosinian intrusion.The contents of Sr and Y with the characteristics of Himalayan granite,suggesting that the Damiao monzogranite is S-type granite formed by partial melting of sedimentary rocks such as pelite in the lower crust under the background of crustal thickening,which is a response to the collision orogeny of North China Plate and Siberian Plate along the Xar Moron River-Changchun line at the end of late Permian to early Early Triassic.The complete homogenization temperature of quartz fluid inclusion is 138 ℃-225 ℃,the salinity is 1.0 %-8.1 %,the density is 0.86-0.97 g/cm³,indicating that the ore-forming fluid is low salinity and low density.The δ34S of chalcopyrite is 2.1 ‰-3.1 ‰,and its metallogenic materials are not directly from the lower mantle,but from basalt in the lower crust from partial melting of the mantle rocks.The Jinchangliang Gold Deposit is a shallow medium-low temperature orogenic gold deposit formed under the tectonic setting of closed orogeny in the Paleo-Asian ocean.The closed orogenic period of the Paleo-Asian ocean is from the end of late Permian to the beginning of early Triassic,which is an important gold mineralization period on the northern margin of the North China Plate.