Studies on petrology, geochemistry and chronology for the granite and rhyolite porphyry, that are the most widely distributed in the Lizikeng Volcanic Basin, Shangrao，Jiangxi, carried out in this paper. Zircon U Pb dating yielded an 165±1Ma for Zhoujia granite porphyry, 137±2Ma and 139±1Ma for the rhyolite porphyries of Caijiaping and Chenshouping respectively, equivalent to the Late Jurassic and the Early Cretaceous respectively. Combined with the characteristics of the subvolcanic rocks and the relationship between granite and rhyolite porphyry and Pb—Zn mineralization in space, age, hydrothermal alteration and material sources, we suggested that the Late Jurassic—Early Cretaceous granite and rhyolite porphyry are the most important metallogenic source rocks and ore hosting rocks, which indicates the ore finding direction for the area in future.