Zircon SHRIMP U-Pb age dating indicates that the Xiaolingzi granite in the Anshan area was emplaced during Early Cretaceous(130.2±2.7 Ma).It is enriched in SiO2, Na2O+K2O, TFeO/MgO, LREE, Zr, Nb and Y, and depleted in CaO, Ba and Sr, thus similar to the widely distributed Qianshan granite with the geochemical characteristics of A type granite in this area. It is suggested that the magmatic activity was related to an extension following the subduction of the paleo-Pacific Plate beneath eastern China.