Objectives: Wuzhangshan granite is the second area acid intrusion in Xiong’er Mountain, western Henan Province. Petrogenesis and deep process of Wuzhangsha granite are important to recognize tectonic evolution in Xiong’er Mountain area. It is significant not only to regional endogenous metllogenic dynamics, but also to geological exploration in Xiong’er Mountain. Methods: Based on detailed field obversations of Wuzhangshan granite in Xiong’er Mountain, western Henan Province, we have studied its features of the petrology, geochemistry and chronolgy. The formation age, partial melting source features, deep tectonic process, zircon age spectrum and regional mineralization potential of Wuzhangshan granite were discussed. Results: The zircon UPb dating method of LAICPMS was used to confirm the age of porphyritic biotite monzonitic granite sample named WZS01 from Wuzhangshan granite. The results of 18 zircon spots in total 27 spots are concordia with 207Pb)/n235U)—(206Pb)/(238U) trendline, and their n(206Pb)/n(238U) weighted average age is 159.6±1.6 Ma. In combination with dating results of SHRIMP and LAICPMS zircon spots from Wuzhangshan granite, it was formed ~160 Ma in late Jurassic. The ages of total 160 UPb zircon spots of the Wuzhangshan granite formed a zircon age spectrum from late Archean to late Jurassic, and 8 age peaks are displayed, i.e. ~2.8 Ga, ~2.3 Ga, ~1.9 Ga, ~1.8 Ga, ~1.7 Ga, ~1.3 Ga, ~178 Ma and ~160 Ma, which recorded the corresponding regional magmatic thermal events. Samples of Wuzhangshan granite are characterized by higher SiO2and alkali, enrichment of K2O, and lower MgO and CaO. They fall into shoshonite series and highK calcalkaline series in the SiO2—K2O diagram. These samples are enriched in large ion lithophile elements and depleted in high fieldstrength elements, which has formed troughs of Nb, Ta, P and Ti in spider diagram. The characteristics of LREEenrichment and HREE depletion without obvious Eu negtive anomaly are shown in chondritenormalized REE patterns. Samples of Wuzhangshan granite have higher Sr and lower Y, which has suggested that it is adakite. Conclusions: Wuzhangshan granite originated from partial melting of the thickened lower crust, and its residual phases of partial melting source included garnet, rutile and amphibole, and no plagioclase. Lithosphere delamination of Xiong’er Mountain area occurred in ~160 Ma, which conduced different compositional source rocks at different depth range begin to melt partially. The polygenetic zircons were added into deep fluid, and ascended rapidly together. The activation of incomplete consolidation magma—fluid reservoir occurred after rejection of deep fluid, and the mixed deep fluid continued ascending to form Wuzhangshan granite with zircon age spectrum. On the other hand, huge deep fluid was drove and discharged rapidly during ~160 Ma lithosphere delamination in Xiong’er Mountain area. The deep orebearing fluid was enclosed effectively in Xiong’er Mountain area because of ~160 Ma mineralization of Au and Mo around Wuzhangshan granite. It has suggested that the area around Wuzhangshan granite and its deep part has large mineralization potential.