This paper provided Petrography, geochemical characteristics, LA- ICP- MA zircon U- Pb age, and zircon Lu—Hf isotopes of Early Paleozoic granite in the Wugong Mountain area, South China. The formation age, genesis, and geological significance of granites are discussed.Methods:Based on the field work, through the microscopic observation, the whole rock chemical analysis, the LA- ICP- MS zircon U- Pb isotopic chronology, and the LA- ICP- MS zircon Lu—Hf isotopes of granites.Results:The zircons of Wugong Mountain granite have good euhedral degree and developed oscillatory belts, showing the characteristics of magmatic origin. Zircon LA- ICP- MS U- Pb isotopic chronology shows that the granites in the Wugong Mountain area were formed at 441.6~442.2Ma and were the products of the Early Silurian orogeny. The rocks are rich in silicon (SiO2=67.43%~73.06%), alkali (Na2O+K2O=6.47%~8.46%), and poor in calcium (CaO=0.78%~2.64%), magnesium (MgO=0.46%~1.61%). Aluminum saturation index (A/CNK=1.09~1.35). It is enriched in large ion lithophile elements such as Rb, K, Th and U, and relatively depleted in high field strength elements such as Nb and Ti. The ratio of light and heavy rare earth elements (La/Yb) N= 7.91~12.69, with a high degree of differentiation and moderate—weak negative Eu anomaly (δEu=0.50~0.86). The rare earth distribution curves are right- leaning, indicating the characteristics of S- type granite. Zircon fLu/Hf values of the Wugong Mountain granite are all less than -0.9, and εHf (t) are all negative.Conclusions:Collectively, it is suggested that the granite belongs to strong peraluminous high- potassium calc- alkaline granite. It is S- type granite, and the magmatic facies is hornblende + plagioclase + garnet. The Wugong Mountain granite was formed in the Early Silurian, and the test results are relatively concentrated, revealing that the early Paleozoic granite in the Wugong Mountain area was formed in a relatively short time. The zircon Lu—Hf isotopic characteristics indicate that the magma source area is neoproterozoic continental crust material. The Wugong Mountain granite was formed in an intracontinental orogenic environment in response to the Wuyi—Yunkai orogenic stage in this area.