As an artistic language, couplets and plaques in private gardens in the south of the Yangtze River are also symbols, tools and elegant decorations of buildings. They are a beautiful landscape in gardens and have the beauty of cultural landscape. In the private gardens in the south of the Yangtze River, all kinds of elegant and unique garden couplets and plaques are found inside and outside garden buildings. Some are ornately mounted and some are simple and elegant. Some are arranged indoors, others are on outdoor Stone or buildings. Some fonts are large and some are small. Some are regular script, line script, and some are official script and cursive script. They themselves are a kind of garden landscape with extremely high aesthetic value. It has historical, humanistic and aesthetic values and is an indispensable art treasure in gardens.