Twentieth century witnessed a mass discovery of Dali State Buddhist manuscripts in Qianxun Temple of Chongshengsi,Beitangtian of Fengyi, Three Pagodas of Chongshengsi, Fotu Temple of Xiaguan. After that, some scholars did some recording and sorting work, some other scholars as LI Lincan, ZHOU Yongxian, YANG Yanfu, LI Xiaoyou, YANG Mingtang, ZHANG Xilu, YANG Shiyu, HOU Chong made some monographic studies. A research summary of these predecessors' achievements offers a better understanding of the present research and a clearer guidance for future studies.