Abstract: The loess mounds are a newly discovered type of landforms on the Laizhou Bay Plain south of the Bohai Sea. Research shows that they were formed in the late period of the Late Pleistocene when the Bohai Sea was esxposed in the period of the late warm ice age and the plain was formed. because the exposed area is not protected by vegetation, the sediments at the sea bottom are blown and transported southward by strong northern winds, and are deposited on the coastal plain. As thick loess layers were formed, the loess mound landforms were formed.

Key words: loess landform, Laizhou Bay plain south of Bohai Sea, Late Pleistocene paleogeography, desertification of continental shelf