Abstract: Nanwei Prefecture is a Tusi prefecture belonging to the Xuanwei Division of Yongshun in the Ming (1368-1644) and Qing (1636-1932) dynasties,and it is an important part of Laosicheng,the World Cultural Heritage site.During the periods of field investigations for the application for World Cultural Heritage,certain cultural relics and historical materials,including the monument of the administrative office of Zhizhou Prefecture in the fourth year of Yongzheng (1726),the tombstone of Tusi governor Peng Yingqi,and Tusi genealogies in Nanwei and Zhizhou Prefectures,were newly discovered.It is found that the governance site of Nanwei Prefecture is not first established in today's Nanwei Village,but in Zhizhou Prefecture,and then back and forth between the two prefectures;and the Tusi lineage of Nanwei Prefecture should be 14 generations and 18 terms.The new conclusion makes some supplement and correction to the previous Tusi research on Nanwei Prefecture.

Key words: Nanwei Prefecture, Zhizhou Prefecture, prefecture governance, Tusi lineage