孙良明先生的《中国古代语法学探究》和《两千年来古人语法分析说略》等系列论著把古人的训诂工作看成是进行语法分析的工作,这是不妥当的;孙著认为中国古代语法学早在汉魏晋南北朝时期就已经产生、至清代趋于成熟的观点也是不能成立的;研究汉语语法学史不能以今律古、拔高古人。同时,孙先生的《古代汉语语法变化研究》一书为汉语语法史研究作出了重要贡献。在此基础上,本文总结出研究汉语语法史的一种新的二重证据法,即:文献原文与注释语言互证法。 Sun Liangming’s “Ancient Chinese Grammar Inquiry” and “A Brief Analysis of Ancient Chinese Grammar in 2000” and other series of treatises treat the ancient people’s exegetical work as a grammatical analysis work, which is not proper; Sun Zhu believes that ancient China Grammar already existed in the period of the Han, Wei, Jin, Southern and Northern Dynasties, and the viewpoint that the Qing dynasty tends to mature also can not be established. The history of Chinese grammar can not be studied in ancient times, and the ancient people are uprooted. At the same time, Mr. Sun’s “Study of the Change of Ancient Chinese Grammar” made an important contribution to the study of the history of Chinese grammar. On this basis, this paper summarizes a new double evidence method to study the history of Chinese grammar, namely: the original text and annotation language mutual proof method.