During the Tang Dynasty, the city was developing increasingly in Hangzhou, the city of Jianzhou, since the Tang Dynasty, but due to the salty groundwater and bitterness, the people's life was extremely inconvenient. Li Bi, who was then Hangzhou's Assassin Shi (equal to the current mayor), used bamboo pipes to lead the West Lake water to the Xiangguojing, Xijing, Fangjing, In the six wells of Baikuijing, Xiaofangjing, Jinniujing, etc., the pain of the citizens' brine is solved. The attached picture shows that the bamboo pipe and well logo have been set up at the entrance of the West Lake water of Li Biyin in history to commemorate his people.