An artificial island will be built in the Jinzhou Bay, Bohai Sea, where the sedimentary are gradually formed with the eustatism and transgression or retreat process since Late Pleistocene. The typical acoustic sub-bottom profiles from Jinzhou Bay, Bohai Sea are analyzed and interpreted. According to the comparative study with the sedimentary stratigraphic and lithologic units of the engineering geological drillings, there is a good correspondence between the acoustic sequences confirmed by the sub-bottom profile and the geological strata of the drilling core. Therefore, the depositional environment is also deduced.oft-com:office:office" />