Nanchang dialect is a dialect of Gan dialect, belonging to Changdu dialect of Gan dialect. It is a representative branch of Gan dialect. Nanchang dialect in a narrow sense is limited to Nanchang city. Nanchang dialect is broadly called Ganyu Changdu dialect, including dialects popular in Nanchang, Nanchang County, Xinjian and parts of Anyi, Yongxiu, Dean, Duchang, Hukou, Pengze, Xiushui, * * Qingcheng, Gao 'an, Fengxin, Jing 'an and Tonggu in Yichun City, Jingdezhen City and Pingjiang County of Hunan Province. After the 1980s, the northern Mandarin has had a more and more severe impact on the Gan dialect, so that some people in the younger generation can no longer use the pure Gan dialect, or even can't use it.
The main language used by Jiangyou people is Gan dialect. Academically, it refers to a language with great similarity, which is distributed in the north, middle, east, west of Jiangxi, southeast of Hubei, southwest of Anhui and northwest of Fujian, including nearly 100 counties and cities with a population of about 55 million. It is one of the eight dialects in Chinese.