本文对古代汉语词头进行了较全面的探讨。古代汉语的词头在文言和白话系统中都有,它产生的主要原因是汉语词汇的双音化使然。用作词头的字大多是从口语词虚化而来,这和词尾的特点相同。文章还分析了词头词尾的异同,并对学术界关于词缀的争论发表了自己的意见。 This article has made a more comprehensive discussion on the ancient Chinese prefixes. Ancient Chinese prefix in both Chinese and vernacular systems, it is mainly due to the dual-tone Chinese vocabularies. Most of the words used as prefix are derived from the colloquial term, which is the same as the suffix. The article also analyzes the similarities and differences between the suffixes of the prefixes and expresses their opinions on the controversy about affixes in academia.