It is located in the southeast of Gaotangwu Dabai Hill, Zhangcun, Xin'anjiang Street, and the porcelain pieces collected from the site are from late Northern Song Dynasty to early Southern Song Dynasty. The kiln site was first discovered in Jiande and first discovered in Hangzhou. Porcelain shape, firing method, glaze color and carved decoration have obvious characteristics of Northern Song porcelain, which has important research and cultural relics value for studying the kiln system of the Song Dynasty, the production scale of porcelain industry, the structure of the kiln, the firing process, the sales of porcelain, and the understanding of the social, economic and living conditions of Jiande at that time.