Zharijia granitiods directly intruded folded Triassic strata. The granites composed of granodiorite and adamellite showing transitional relationship have porphyritoid or porphyritic texture and abundant aluminum and potassium. The data show that Zharijia granitoids were formed in the period from syn-collision to the beginning of post-collision during the Bayan Har intracontinental orogenic activity. Based on a comparison with the metallogenic age of the known Dachang gold ore bodies, the authors infer that the Dachang gold ore deposit and Zharijia granites were both produced during the Bayan Har intracontinental orogenic activity, and that the formation of the gold deposit had something to do with the formation of the granitiods.