Qinling orogenic belt is an important part of China’s Central Orogenic belt. In recent years,a series of tungsten prospecting breakthroughs have been made, especially for the newly discovered Hetaoping W- polymetallic deposit in the southern Qinling Mountains, which has an industrial grade of Be resources in Zhen’an, Shaanxi Province. Based on the detailed field geological work, this paper studies chronology and in- situ element/isotope geochemistry of the deposit in order to define its metallogenic age and material source, find out its metallogenic mechanism and establish its metallogenic model. The plateau ages of fuchsite and phlogopite obtained by Ar- Ar method are 201. 4±2. 10 Ma and 196. 6±2. 38 Ma, indicating that the large- scale mineralization of rare metals such as W, Mo and Be is closely related to the acid magmatism of the post- orogenic stage during the late Indosinian to the early Yanshanian. LA- ICP- MS in- situ analysis shows that Mo, Nb and Ta are relatively enriched in scheelite, and the Nb/Ta ratio decreases significantly from the early to late stages of oxide, while the 87Sr/86 Sr ratio increases significantly, reflecting that the source of ore- forming material in the early stage of oxide is mainly deep- sourced acidic magma, while the crust- sourced ore- forming material increases gradually from the late stage of oxide. Scheelites were characterized by light rare earth enrichment, indicating that garnet, diopside and other skarn minerals enriched in the skarn stage precipitate prior to scheelite and beryl. Relatively K- rich hydrothermal environment was conducive to enrichment and precipitation of Be in the early stage of oxide. Considering the geological background and geological characteristics of tungsten deposits in the southern Qinling, the metallogenesis of tungsten polymetallic deposits in the western Zhenan area are multi- restraint of magma, strata and structure. The ore- bearing hydrothermal reacted with carbonate host rocks and produced skarnized layered ore bodies, and filling and metasomatizing in fissures to form veined ore bodies. The metallogenic mechanism can be summarized as “hidden rock mass+specific horizon+two distinct structurals”. In the deep exploration process, we can draw lessons from the exploration model of “five storeys+basement” in South China, especially focusing on the exploration of layered ore bodies controlled by interlayer fracture zones of different lithologic interfaces. The metallogenic model also has important reference value for deep prospecting and comprehensive evaluation of similar type of tungsten polymetallic deposits in the southern Qinling orogenic belt.