Purple bamboo shoot tea produced in ancient Zhushan, Changxing is a tribute tea in Tang Dynasty. Tang Dali five years, five hundred strings of tribute; By the middle of Huichang (84 1-846), the annual tribute increased to 18400 Jin. When making tribute tea, it is "the master of the secretariat, and observation makes everything in it". According to Song Jiatai's "Wu Xingzhi", "There is a tribute tea garden in Changxing, behind Hutou Rock, which is called ancient bamboo. Stalagmites hang on the left, or plow into the garden, or cut charcoal, but Guanshan is unique and beautiful. This is due to Gu's establishment of more than 30 grass huts. From the fifth year of Dali to the sixteenth year of Zhenyuan, tea was made here, and Qingming was rushed to Beijing. " He added, "Gao Yuan and Li Jifu have their own accounts. In the seventeenth year of Zhenyuan (80 1), the poet Li Ci built a temple in the humble courtyard and moved to Wu Chan. There are 30 tribute tea courtyards in the East Corridor, with two rows of teapots, which bake more than 100 pieces, attracting more than a thousand craftsmen. In the meantime, Gu Zhuquan is used for cooking, steaming and washing, and this water is essential. In the Yuan Dynasty, Gongchayuan was changed to chayuan, a mill, and the site was moved to Shuikou. Today, although the ancient bamboo tribute tea house has been abandoned, the remains of the discharge site can still be identified. Now a monument is erected next to it to tell future generations.