Abstract: The black rock series is developed in eastern South Qinling, which contains large scale Au and V deposits, such as the Zhongcui, the Yinhua and the Qianjiaping vanadium deposits. With the finding of the Xiajiadian gold (vanadium) deposit in the series, it is now clear that the vanadium deposit is obviously controlled by strata and lithology and was formed in the lower part of the early Cambrian Shuigoukou formation. The formation of the deposit is related to the anoxic setting. However, the formation of the gold deposit is not only controlled by the black rock series,but is also controlled by structure activities after organic processes.Ther efore,it is crucial to carry out combination approach in the exploration, particularly in the area where the east and north striking structures were in superposition in the black rock series.