These tombs lie in the center and north of Deqing County on the southern shore of the Taihu Lake, and altogether 11 mounds were excavated on Ducang and Nanwang hills. The mounds are made oval or round in plan, arranged in lines along the hill ridges, and raised distinctly on the surface.They contain burials in stone chambers or those without such furniture; the latter can further be divided into several classes, such as the stone-framed, stone-bedded and on-the-ground types. No human skeleton and coffin were found in the tombs. The funeral objects include proto-porcelain, hard pottory with impressed pattern and a small amount of plain hard pottery and clay one. In date the tombs can be roughly assigned to the time from the early Western Zhou to the late Spring-and-Autumn period. With the variety of burial forms, the importance of some remains and the exquisiteness of numerous grave goods, the discovery provides valuable material for studying in depth the regionalization, periodization and burial custom of mounded tombs, as well as the evolution of proto-porcelain.