长沙五一广场东汉简牍的发现，揭开了东汉简的面纱，让学者有机会大量接触到东汉手写材料。通过五一简文字，可以看到隶书发展到东汉，形态上已经与西汉时期有了较大变化。字形结构上，虽然古隶的痕迹未脱干净，但经过长时期的异体改造，已经出现了不少后来俗字的身影。本文研究五一简的文字问题，旨在分清形势，总结规律，理清源流，验明正身。第1章“绪论”介绍五一简的基本情况与研究价值，总结文字研究的得失。并对工作方法、常见概念予以明晰。五一简文字有多种字体，而且字体间有相互杂糅，影响字形的情况。第2章从汉代字体研究的新认识出发，介绍有关字体的特点，分析它们与字形的关系。第3、4章总结文字的异写规律和结构改造，讨论字形变化的问题。在五一简中，大量的异写变化是植根于字体的。依据隶书特点总结的“笔画通例”，是字形变化的内在动力。文字的增笔、省写、移笔、类化是文字内部改造的具体表现。五一简文字的讹变、讹混呈网状分布，交替进行。就讹变的结果而言，既有利用部件、成字、异体、字符的依形改造，也有在原字基础上为音义服务的有意调整。五一简的字形变化为东汉文字的形体研究提供了丰富材料。五一简的书写年代与《说文解字》的成书年代重合，第5章将五一简与《说文解字》比较研究，挖掘《说文解字》在写作过程中受同时代汉字知识的影响，比较东汉实用文字与许慎总结典籍用字的异同。第6章探索五一简复杂的文字构成，通过与前后时代实物文字的比较，为简文在汉字演进序列中找到定点，给释读工作提供方向。第7章结合整理报告以来学界对五一简文字释读的得失，总结工作中需要注意的问题，选取其中“笔”、“绵”、“策”、“央”等有代表性的例子，提供本文的释读方案。

The discovery of Eastern Han manuscripts from Wuyi Square, Changsha, has lifted the veil of the Eastern Han Dynasty slips and provided scholars with a large number of opportunities to contact the handwriting of the Eastern Han Dynasty. Through the characters on the WuyiJian五一簡, we can see that the official script developed to the Eastern Han Dynasty, and its form has changed greatly with that of the Western Han Dynasty. On the font structure, although the traces of the Guli古隸 have not been removed, but after a long period of allogeneic transformation, there have been many later folk characters.This paper studies the problem of writing on the WuyiJian五一簡, aims to distinguish the situation, summarize the law, clarify the source, and identify the right body. Chapter 1 ＂Introduction＂ introduces the basic situation and research value of WuyiJian五一簡, and summarizes the gains and losses of writing research. The working methods and common concepts are clarified. There are many fonts in the text on WuyiJian五一簡, and there are mutual hybridisation between fonts, affecting the situation of font. Chapter 2 starts from the new understanding of typeface research in Han Dynasty, introduces the characteristics of typeface and analyzes the relationship between typeface and typeface. Chapter 3 and 4 summarize the law of different writing and structural transformation of characters, and discuss the problem of font change. In the WuyiJian五一簡, many of the writing changes of the text are rooted in the font. According to the characteristics of official script summed up the ＂ general law of strokes ＂ is the internal driving force of the change of font. The characters increase strokes, reduce strokes, move strokes, and tend to be the same are the specific manifestations of the changes in the internal body of the characters. The irregular changes and confusion of the appearance of WuyiJian五一簡 characters are distributed in a network, alternately. In terms of the results of unconventional changes in the shape of characters, they include partial Chinese characters, single Chinese characters, Chinese characters with different characters, symbols and so on. There are also cases where the writing of the original word is changed for pronunciation and semantics. The change of the form of WuyiJian五一簡 provides rich materials for the study of the form of the Eastern Han characters. The writing time of WuyiJian五一簡 coincides with that of ShuowenJiezi說文解字. Chapter 5 makes a comparative study of WuyiJian五一簡 and ShuowenJiezi說文解字, excavates the influence of contemporary Chinese character knowledge in the writing process of ShuowenJiezi說文解字, and compares the similarities and differences between the practical characters of the Eastern Han Dynasty and the characters used by XuShen許慎 in summarizing classics. Chapter 6 explores the complex composition of WuyiJian五一簡 characters, and finds the fixed point in the evolution sequence of Chinese characters and provides the direction for interpretation. Chapter 7 combines the gains and losses of the academic circle‘s interpretation of the WuyiJian五一簡 characters since the report, summarizes the problems that need attention in the work, and selects representative examples such as ＂Bi筆＂, ＂Mian綿＂, ＂Ce策＂ and ＂Yang央＂ to provide the interpretation plan of this paper.