The source of foreign teachers' creation is the theory of Chinese painting creation put forward by painters in Tang Dynasty.

Zhang Xuan. Zhang Yun, a painter in the Tang Dynasty in China, put forward the artistic creation theory that "nature is made by foreign teachers and the heart comes from China", which has a great influence on the development of traditional landscape painting in China, so it was Zhang Yun. Zhang Wei (? -1093), formerly known as Hu, was born in Chuzhou Quanjiao (now Anhui Quanjiao), and Jia You was a scholar. He used to be Facao of Fengxiang, magistrate of Jinyun County, edited by Xi Ningzhong and taught by Wang Anshi.