The Interpretation of the Words and Expressions of the Documents Unearthed from Turpan is a research focus in the studies of Chinese history and Dunhuang Studies,which has yielded achievements.However,a lot of problems also remain.Selecting and reinterpreting some words and expressions such as fuyuan,biwei,bubianshuitu,hanliang,and jixing as explained in former researches,this paper points out that we must cautiously confirm the neologism in new materials,and any new word should be verified before its context is fully studied.