《世说新语》是研究中古汉语的重要文献。全书副词的使用存在一个很明显特点,即双音节副词的大量出现。本文试图探讨以“自、复”为后缀构成的双音节副词及其特点,并揭示其因魏晋南北朝时期上古单音词的统治地位开始动摇、双音节急剧增多的情况下,“自、其”自身语法功能和作用的弱化淡化,直至完全丧失语法功能,成为一个凑足双音节词构词成分的形成原因。 “Shi Shuo Xin Yu” is an important document for studying ancient Chinese. The use of book adverbs there is a very obvious characteristic, that is, a large number of disyllabic adverbs appear. This paper tries to explore the double syllable adverbs and their characteristics with the suffix “” and reveals the fact that the monosyllable dictum began to waver and the number of double syllables increased sharply during the Wei, Jin and Southern and Northern Dynasties. Since its "weakening of its own grammatical functions and functions has been diluted until it completely loses its grammatical functions, it becomes a reason for the formation of disyllabic word components.