In the summer of 1973, the local people found this site with a total area of about 40,000 square meters, a cultural accumulation of 4 meters, and four cultural layers. The age of the fourth cultural layer of the site was determined by carbon selenium 14. Two archaeological excavations in 1973 and 1977, a total excavation area of 3,000 square meters, unearthed more than 6,700 cultural relics such as bones, stones, pottery, production tools, living utensils, original artworks, and a large number of artificially cultivated rice, a large number of dry-bar wooden architectural sites and rich moving plants remains of things.