The publication of Supplements of Entire Donovan(10 volumes) has great academic value offering extremely favorable conditions to the study of literature and history of tang dynasties. On the other hand, on account of the voluminous work, mistakes are unavoidable. This paper illustrates several mistakes of Supplements of Entire Donovan in sentences ,phrases and forms with hoping offer some help for collating and checking ancient documents and the studying of literature and history of Tang dynasties.