本文主要从语义方面对《后汉书》李贤注进行系统研究。李贤注能够明确区分单纯词与合成词,并对单纯词中的联绵词、叠音词、外来词,以及合成词中的复合词和派生词作出恰当的解释。李贤注对于词的语源义和词在文章中的具体含义所进行的解释,为我们了解和考察唐代以及唐代以前的语义提供了有利条件。 This article mainly semantically studies the “Post Han” Li Xianzhu. Li Xian-mei can clearly distinguish between simple words and synthetic words, and make appropriate explanations for the compound words and overlapping words in the simple words, the loan words, and the compound words and derivatives in the compound words. Li Xianzhe's interpretation of the specific meanings of the words' etymology and harmony in the essay provides favorable conditions for us to understand and examine the semantics of the Tang Dynasty and the Tang Dynasty.