In 2001, a house structure with underground water system dated to Song dynasty were discovered in Mong Tseng Wai by the Hong Kong Archaeological Society. It was the only Song dynasty village site in Hong Kong.
Mong Tseng Wai was founded by the Tang Clan of Kam Tin during the Ming dynasty.[2] Mong Tseng Wai was historically probably allied to Ha Tsuen in an oath-sworn alliance, although it was not part of the Ha Tsuen Heung (廈村鄉).[3]