Abstract: The shell mounds in North Shandong Province and the shell mound vegetation have not been studied systematically in the past. This article is an explanation of the development of the shell mounds of North Shandong province on the basis of the distribution of shellfich in the shallow Bohai Sea, the fluctuating rise and fall of the sea surface in the Holocene, and the hydrological dynamics of the Yellow River and the sea. Furthermore, this article gives a brief description, under this particular circumstance, of the components, the characteristics of ecotype, the exterior structure, and the systematic types of the vegetation.