Dialect is a form of regional culture, which is functional in storing local cultural information This paper collects, describes and analyzes Chongqing Yanzi’er— series of new words expressions in Chongqing dialect, which is a vivid and interesting Yanzi’er, expressing the humorous and frank personalities of the people in Bayu and forming a cultural phenomenon of unique regional features Those rich and colorful dialectical words and expressions have become a media that records the culture of Bayu, which are the symbol of the unique culture of Chongqing Hence, interpreting such new words and expressions would be an indispensable way to understand the people of Chongqing and the current features of Chongqing