Under the social conditions of rapid economic development, the form of folk songs is also constantly changing, and the audience has put forward new requirements for high-quality music. Folk singers should pay attention to the publicity and promotion of folk songs while improving their own music quality. The publicity and promotion of folk songs is the key to the survival and development of folk songs in the music industry. The exhibition design is of great help to the promotion of folk songs. How to improve the promotion of folk songs, create high-quality folk songs, stimulate the interest of the audience, and create a larger stage for the development of folk songs is the common pursuit of today's folk singers. Therefore, this paper analyzes the application of display design to folk song promotion, hoping to provide valuable suggestions for relevant workers.