According to the data of sediment gain size, element geochemistry and paleontology, as well as 14
C dating in the Lingdingyang Estuary cores, we studied and discussed the sequence stratigraphy and sedimentary evolution in this paper. Using the spotted clay layer as the marker of erosion, the deposits since Pleistocene could be divided into two groups, the Pleistocene under the surface of erosion and the Holocene above the erosion surface. There are six stages of evolution including two transgressions. Each stage is elaborated in climate change, sea level fluctuations, sedimentary characteristics and sedimentary processes.