Many adjectives in Shanxi dialect are in overlapping forms. This is the biggest difference between it and Mandarin, because there are very few overlapping adjectives in Mandarin. These overlapping adjectives partially overlap as a whole, and some overlap partially, but many overlapping forms are integrated overlaps generated at one time, and only a small part is formed after multiple evolutions. We can understand the characteristics of word formation in the Western dialect of Wuxiang Mountain with the study of Shanxi's adjective overlap.