Abstract: The authors have carried out on faults with near EW-trending, controlling gold ores, by recent field work at Qiaoshangzhai, Linghu, Dahu and Qinnan-Taiyanggou gold deposits from the northern metallogenic belt in Xiaoqinling gold (molybdenum) province, Henan Province. Felsic mylonite and tectonic cataclastic rocks are predominated in this fault. The S-C fabric in felsic mylonite and angle of cleavage with fault plane are an indicative of reversal fault. This fault is offset and intercepted with each other in plan. The field evidence suggests that the fault system with near EW-trending, which is composed of, from north to south, F₁, F₈, F_{7, F35, F5, and F6, is an overtrust fault system in northern metallogenic belt in the area. These faults are controlling the formation of gold deposits, in part which auriferous quartz vein is deformed as banded texture, suggesting that this fault is formed before the time 123 Ma. Later faults corresponding to hill fault are normal fault, and destroyed the gold ores in the area.}

Key words: ore-controlling fault, overthrust, gold deposits, northern belt, Xiaoqinling