本文认为汉语的基元单位是“语位”( grammeme)。语位相当于“单音节语素” ,也相当于“汉字的义项”。汉语的特点是“单音节表意”。语位是“声位、形位、意位”三位一体的。本文还讨论了汉语“声位”的类型、“形位”的结构、“意位”的标注。语位是汉语语法研究的基点 ,从语位出发可以逐步构建各层次语言单位的“意合模式”。 This paper argues that the basic unit of Chinese is “grammeme”. The linguistic equivalent of “monosyllabic morpheme” is also equivalent to “the meaning of Chinese characters.” Chinese is characterized by “monosyllabic”. The linguistic position is the trinity of “sound, shape and meaning”. This article also discusses the types of “syllables” in Chinese, the structure of “form”, and the annotation of “meaning”. Linguistic locus is the basic point of Chinese grammar research. From the linguistic level, we can gradually construct the “syncretism mode” of linguistic units at all levels.