The Law of People's Republic of China (PRC) on Common Languages and Characters, which came into effect on 200 1, clearly stipulates that the state promotes the standardization of Chinese characters, and at the same time clarifies the scope in which traditional Chinese characters can be preserved or used: (1) cultural relics and historic sites; (2) variations in surnames; (3) Artistic works such as calligraphy and seal cutting; (4) Handwritten inscriptions and signboards; (five) required by publishing, teaching and scientific research; (six) special circumstances approved by the relevant departments of the State Council. This law determines the legal status of standardized Chinese characters as the national common language, and reserves a certain space for the study and use of traditional Chinese characters, which is suitable for China's national conditions and can basically meet the needs of China people in all aspects of life and should be followed. When discussing the study and use of traditional Chinese characters, we should have legal awareness and act according to law, and we should not go it alone and violate the law. At the same time, we should properly solve some problems in the use of traditional Chinese characters and use them to a limited extent within the scope permitted by law. But Ancient Discourse is a book that studies ancient documents. Of course, it is better to use traditional Chinese characters, which is closer to ancient times. Also better understand ancient Chinese. Ancient Chinese is rich in content. Generally speaking, ancient Chinese includes three parts: anthology, general theory and common words. The anthology part, in terms of content, involves a subset of classics and history; As far as time is concerned, the outstanding works in the pre-Qin period, spanning the Han, Wei, Southern and Northern Dynasties, Sui, Tang and Song Dynasties and ending in the Yuan Dynasty are selected. As far as genre is concerned, prose, poetry, fu, ci and qu are all included. The general part includes the use of dictionaries, words, vocabulary, grammar, phonology, rhetoric, ancient book annotations, sentence reading, style, astronomy, calendar, music, geography, official positions, imperial examinations, palaces, horses and chariots, diet, clothing and so on. Rich in content, it can be said to be a small encyclopedia about traditional culture, but it all revolves around a theme, which is to improve readers' ability to read ancient books. In the part of common words, 1086 monosyllabic words commonly used in ancient books with obvious differences between ancient and modern times are selected, and their common meanings, especially the discrimination of synonyms, are introduced, which is very helpful for beginners to master the subtle differences between synonyms and truly understand ancient books. At the same time, it also reflects Mr. Wang Li's thought of dictionary compilation to a certain extent, which has a certain influence on the compilation of ancient Chinese dictionaries and dictionaries.