Su San refers to Su Xun (No.Lao Quan, Ming Yun) and his sons Su Shi and Su Zhe (1039 ~1112). In the early years of Jiading, Song Renzong, Su Xun, Su Shi and Su Zhe all went to Tokyo (now Kaifeng, Henan). Because of Ouyang Xiu's appreciation and reputation, their articles soon became famous all over the world. Scholar-bureaucrats scrambled to tell stories, while literati scrambled to imitate them for a period of time. Wang Bizhi, a poet in the Song Dynasty, recorded in The Story of Swallows in Lushui: "Su Wen is good at the world, and his word name is Yue. Gai Xun is Lao Su, Shi is Da Su, and Zhe is Xiao Su. " The title of "Three Sus" came from this. Su and his son actively participated in and promoted the ancient prose movement advocated by Ouyang Xiu, and they all made great achievements in prose creation, and were later included in the "Eight Masters of Tang and Song Dynasties". Three Suzhong, Su Xun and Su Zhe are mainly famous for their prose; Su Shi not only made great achievements in prose creation, but also played an important role in poetry, ci, calligraphy, painting and other fields.