Abstract: The structure of syllables is related to the pronunciation, prosodies, and word formation of a language. And the description, processing, and acquisition of the phonological systems of syllables will exert a great influence on language studies and language education. “Biángbiáng noodles”, as a special snack in Shaanxi province, spread far and wide, and the Chinese character “biáng” is also well known in Shaanxi. However, the written form is not included in all kinds of contemporary dictionaries as well as Chinese font. Therefore, the analysis of the onomatopoeia and syllabification,and the exploration of the coming into being of the special character in Shaanxi dialect can help more people understand the “biáng” character on the one hand. On the other hand, we also hope to develop the function of word building in word processing so as to provide convenience for people to type the character.