《桃花扇》以侯方域、李香君的悲欢离合为主线，展现了明末南京的社会现实。《桃花扇》全书用清朝白话写作，因此如实保留了清代的口语特点。本文穷尽式地收集统计了《桃花扇》中的重叠词，从重叠词的结构类型、语法功能、语义特点以及语用功能几个角度对《桃花扇》重叠词进行穷尽式的分析和统计，以期探讨清代重叠词的构成和使用情况。

Peach Blossom F-an shows the social reality of Nanjing at the end of the Ming Dynasty by taking the joys and sorrows of Hou Fangyu and Li Xiangjun as the main line. Peach Blossom F-an is written in the Vernacular of the Qing Dynasty, so it faithfully retains the spoken language characteristics of the Qing Dynasty. This paper exhaustively collects and makes a statistical analysis of the overlapping words in Peach Blossom F-an from the perspectives of their structural types, grammatical functions, semantic features and pragmatic functions, in order to explore the formation and use of the overlapping words in Qing Dynasty.