Through discussing the geology, strata and rock structure of intermediate-acid rock mass in Shaanxi area, the characteristics of regional acid rock mass are summarized. Through the analysis of ore deposits, it is concluded that the basic geological characteristics of molybdenum deposits in eastern Qinling area of Shaanxi Province are similar to those of large-distributed molybdenum deposits in China"s mainland, in which Eu is contained. The content of K, Ra, Ba, Nb and Ta is abundant and Ti is deficient. Ore and rock are easily formed in orogenic environment. The ore-bearing magma in the northern Qinling Mountains contains more crustal fluid, and the manganese-derived magma in the molybdenum deposits in the northern South Qinling Mountains is abundant. The value of in the large-scale rocks in southern Qinling Mountains is higher (-6.0-5.0, usually negative), but the value is lower (1.47-0.79Ga). Relevant data indicate that the magma originated from mantle-derived materials and the newly formed thickened crust. Geological and geochemical characteristics indicate that the Qinling gas has beautiful conditions for forming molybdenum deposits, and has great potential for forming small to medium-sized copper and molybdenum deposits.