A large graveyard, some pottery kilns and ruins of houses were unearthed at the Zhoujiazhuang site in north Shanxi Province.
The ancient graveyard is unusual in that it contains the remains of both adults and children, according to the field archaeology research center of the China National Museum.
The discovery will provide materials for the research of social structure, ancient burial rituals and the area's development.
The Zhoujiazhuang site was discovered in the 1950s. Its history dates back to the Neolithic Age.