They were unearthed yesterday and taken to a museum in Anyang city, according to local archaeological officials.
Last month, a villager in Anshang's Neihuang County discovered ancient tombs while digging in a brick kiln. He uncovered bronze items as well as human and animal bones 10 meters deep underground.
Following a preliminary excavation, experts from the Anyang institute of cultural relics and archeology found 22 tombs from the late Shang Dynasty (1600 BC-1046 BC), the second in China's history.
In ancient times, Chinese people used an outer coffin to protect the inner coffin.
Kong Deming, head of the institute, told the state-run Xinhua news agency that it is rare to see such well-preserved coffins from the Shang Dynasty.
"It is a family burial place. The owners were affluent people, possibly aristocrats," he said.
He noted that the discovery might help archaeologists learn more about Shang Dynasty burial customs and understand cultural development.
The excavation could also be helpful in geological studies since the coffins were buried so deep, Kong said.
