Through the synthetic lithofacies studies for the Shipu limestone section located in Xiangshan, Zhejiang Province, four types microfacies can be recognized, i.e. bioclasts micrite, oolite micritic limestone, stromatolite marlite, and thin lamina banded limestone, and they formed in tidal flat, oolitic beach and shallow environments, accordingly. Based on the researches of the cyclostratigrapy, the Shipu limestone can be divided into four sedimentary cycles which record three major transgressions. Furthermore, zircon LA ICP MS U Pb dating has been conduced for the tuff beds from the base and top of the section for the first time. The new radiometric age data indicated that the Shipu limestones deposited in the Early Cretaceous age from 1142 Ma to 963Ma.We believe that these results should stir up a new thought on the depositional environment and tectonic background of Early Cretaceous in southeast of China