Shan shui (; pronounced shan1-shui3) refers to a style of traditional Chinese painting that involves or depicts scenery or natural landscapes, using a brush and ink rather than more conventional paints. Mountains, rivers and waterfalls are common subjects of shan shui paintings.
Shan shui painting first began to develop in the 5th century, in the Liu Song dynasty. It was later characterized by a group of landscape painters such as Zhang Zeduan, most of them already famous, who produced large-scale landscape paintings. These landscape paintings usually centered on mountains. Mountains had long been seen as sacred places in China, which were viewed as the homes of immortals and thus, close to the heavens. Philosophical interest in nature, or in mystical connotations of naturalism, could also have contributed to the rise of landscape painting. The art of shan shui, like many other styles of Chinese painting has a strong reference to Taoism/Daoism imagery and motifs, as symbolisms of Taoism strongly influenced "Chinese landscape painting". Some authors have suggested that Daoist stress on how minor the human presence is in the vastness of the cosmos, or Neo-Confucian interest in the patterns or principles that underlie all phenomena, natural and social lead to the highly structuralized nature of shan shui.
Most dictionaries and definitions of shan shui assume that the term includes all ancient Chinese paintings with mountain and water images. Contemporary Chinese painters, however, feel that only paintings with mountain and water images that follow specific conventions of form, style and function should be called "shan shui painting". When Chinese painters work on shan shui painting, they do not try to present an image of what they have seen in the nature, but what they have thought about nature. No one cares whether the painted colors and shapes look like the real object or not.
According to Ch'eng Hsi:
Shan shui painting is a kind of painting which goes against the common definition of what a painting is.