本文总结了现代学术史上关于古音学的三次大讨论,认为第一次大讨论的主题是新材料的利用问题,第二次大讨论的主题是阴声韵的尾辅音的构拟问题,第三次大讨论的主题是主元音构拟问题。以史为鉴,可以裨益当今学术研究。 This article summarizes the three major discussions on ancient phonology in the modern academic history. It holds that the theme of the first major discussion is the utilization of new materials. The theme of the second major discussion is the formulation of the tail consonants of the yin rhyme. The third major The subject of discussion is the main vowel problem. Learning from history can benefit today’s academic research.