| Reduplication is an important grammatical means of Chinese,showing a wide range of features in the distribution,except the Mandarin Chinese,it often used in dialects.The Xinjian dialect belongs to Gan dialect,and its reduplication phenomenon is quite rich,especially the adjective reduplication.To research the adjective reduplication of Xinjian dialect,which can be conducive to making up for the deficiency of grammar research of Xinjian dialect;on the other hand,it can supplement the relevant data of adjective reduplication research.The main research contents of this paper are divided into three aspects.The first is the structural form.according to the different syllables and properties of adjectives,adjective reduplication can be divided into three categories:monosyllabic adjective reduplication "AA Zi","AA Li" and "A Da A";Two-syllable adjective reduplication "AABB" and "A Li AB";Two-syllable adjective reduplication "ABAB","A Gu AB","A Gu da B" and "AAB".Secondly,the above nine reduplication of sound intensity,sound length and tone are summarized.Finally,it is pointed out that the main factors affecting adjective reduplication are reduplication format,self-control of word meaning,phonetic rules,internal structure of words and the degree of reflection of state adjectives.The second is the grammatical function.nine kinds of reduplication are described in detail as subject,predicate,object,attribute,adverb and complement,and the combination of adjective reduplication with adverb and auxiliary word "ge" in Xinjian dialect is further analyzed.Compared with Putonghua,it is found that adverbs with relatively low expression such as "有些子" and "有点子" in Xinjian dialect can modify some adjective reduplication.In addition,it summarizes the situation of adding "ge" when reduplication is used as different grammatical components,and points out that when reduplication is used as subject,object and attribute,the subsequent "ge" is a nominalization mark.As a predicate,"ge" has two roles,one is a nominalization mark,the other is the modal particle "de";When used as adverbial,"ge" is the adverb ending "de";As a complement,"ge" is the modal particle "de".The third is semantic features.it focuses on the quantitative,evaluative and state features of adjective reduplication.Firstly,by comparing the degree of different reduplicative expressions,we can know that the degree of reduplicative expressions of monosyllabic adjectives from weak to strong is AA Zi |