Swallow has always been an important font style in Chinese calligraphy, which has certain artistic appreciation value. It is widely used in China's calligraphy art, showing different styles and expressive force in different calligraphy works. Although the use of swallows has no specific meaning, it is usually regarded as an elegant, unique and aesthetic calligraphy art form. Therefore, the swallow in small font represents the pursuit of artistic aesthetics and calligraphy skills in China culture.