重叠在许多语言及方言中被广泛应用,是一种重要的语法手段。本文以山西省汾西县汾西方言中形容词重叠AA式为研究对象,实地考察,论述了该重叠式的句法功能和语法。汾西县位于山西省南部,临汾地区与晋中地区交界处,因此,汾西话既有临汾话特点又有晋中话特点,可谓独具特色。方言与普通话相比,有着更丰富的表达形式和更灵活的表达技巧,汾西话中的重叠AA式虽只是一种形式,却具有较多的句法和功能, Overlapping in many languages ​​and dialects is widely used, is an important grammatical means. In this paper, we use the overlapping AA of adjectives in Fenxi dialect in Fenxi County of Shanxi Province as the research object, and examine the syntactic function and grammar of this overlap. Fenxi County is located in the southern part of Shanxi Province, Linfen area and Jinzhong area at the junction, therefore, Fenxi dialect has both Linfen dialects features and Jinzhong dialect, can be described as unique. Compared with Mandarin, dialect has a richer form of expression and more flexible expression skills. Although the overlapping AA style in Fenxi dialect is only a form, it has more syntax and function,