Couplets are one of the traditional cultures of the Han nationality. They are antithetical sentences written on paper and cloth or engraved on bamboo, wood and columns. The antithesis of couplets is neat and even, which is a unique cultural and artistic form of Chinese language. According to legend, couplets originated from Meng Changjun, the master of Shu after the Five Dynasties. Couplets are the traditional cultural treasures of Han nationality in China.

Couplets, also called couplets, are named after the pillars hung in halls and houses in ancient times. They are commonly known as even characters, couplets, couplets and doors. The name "couplets" began in the Ming Dynasty. It is a kind of dual literature, which originated in Fu Tao, and it is a national style that uses the characteristics of Chinese characters to write. Its wonderful combination with calligraphy has become a colorful artistic creation of the Chinese nation.