本文分三部分:一、描述彝缅语鼻冠声母的发音特征、组合类型、语义功能。二、通过亲属语言、方言的比较、指出彝缅语的鼻冠音有着共同的来源,多与古藏语的复辅音声母对应,其中与带?、m前置辅音的复辅音对应的比较多,此外还有带d、g、b的复辅音。认为彝缅语鼻冠声母来自古藏缅语的复辅音声母。三、指出彝缅语鼻冠声母的形成经历了复辅音“整化”的过程,即前置辅音由多种辅音整化为鼻音,主要辅音由多种发音方法整化为一类。“整化”的结果使彝缅语的声母结构更为整齐、系统;并使一部分词声母主要辅音的清浊向对立面转化,从而出现新的语音配合条例。 This article is divided into three parts: First, to describe the pronunciation features, combination types and semantic functions of nasal prongs in Yi-Burmese language. Second, through the comparison of relative language and dialect, it is pointed out that the nasal crown sound of Yi-Burmese language has a common source and corresponds mostly to the complex consonants of the ancient Tibetan language, of which the corresponding complex consonants with , In addition to complex consonants with d, g, b. It is believed that the initial consonant of the Yi-Burmese nose comes from the consonant consonants of the Tibeto-Burman language. Thirdly, it is pointed out that the formation of the nasal crest of Yi-Burmese language has undergone the process of “consummation” of complex consonants, that is, the front consonants are integrated into nasal consonants by a variety of consonants, and the main consonants are integrated into one category by various pronouncing methods. As a result of the “integration”, the initial consonant structure of Yi-Burmese language is more neat and systematic; and the voicing of the main consonants of part of the initials is transformed into the opposite, resulting in the new voice cooperation regulations.