唐朝李贤为《后汉书》作注,注重文字的训诂,成就很大,但疏漏驳杂之处仍然难免。本文对李贤《后汉书注》中不明语境的现象进行探讨和商榷,以期更深入地推进《后汉书》的研究。 Li Xian in the Tang Dynasty made a note for “Post-Han Dynasty Book” and paid attention to the exegesis of writing, which made great achievements. However, omissions and miscellaneous features are still inevitable. This article discusses and discusses the phenomenon of unknown context in Li Xian’s Annotation of Later Han Dynasty, in order to further promote the study of Later Han Dynasty book.