The Shuangfengshan gold deposit is distributed in the Lower Carbonifero us (C1b2) volcanic rocks,dipping NE30 °with a dip angle of 38°. The orebodies are mainly lentalites,which are 40～360 m in length and 1～4 m in thick ness.The tenor of the orebodies is about 5×10－6. The main minerals are m irocry stalline quartz and chalcedony, and gold is mainly distributed in pyrite and a rsenpyrite. The ores have brecciated structure,network structure and veindisse minated structure. This paper demonstrates that this deposit is a Hercynian volcanichosted epithermal gold deposit with epithermal alteration association and special alteration zoning pattern.