一、既往研究唐代敦煌文書中,P.2507號《水部式》作爲法律文獻,經過中外幾代學者不同角度的探索和考辨,在學術史上留下了皇皇數百篇成果。研究包括著録、校釋和在相關研究中的屢屢引用。從20世紀20年代,羅振玉開始於《鳴沙石室佚書》、《鳴沙石室古佚書》刊録《水部式》全文,並據以勘校《唐六典》,進而探討海運各條史料。陶希聖也在 In the past, Dunhuang Manuscripts in the Tang Dynasty, P.2507 “Water Department” as a legal document, after several generations of scholars at home and abroad to explore and examine different angles, leaving hundreds of achievements in the academic history of the emperor. Research includes bibliography, school interpretation and references in related studies. From the 1920s, Luo Zhenyu started the full text of “Water Department” published in “Ming Sha Shi Room Lost Book,” “Ming Shusha Room Ancient Lost Book,” and on the basis of the survey of “Tang Li Dian” historical data. Tao Xi Sheng is also