During the Yongzheng period of the Qing Dynasty, Emperor Yongzheng was obsessed with elixirs and longed for immortality. He ordered all officials to search for famous doctors and Taoist priests to appreciate the secrets of ancient prescriptions and wonderful recipes for saving the world. "Tang" was established, and the pot was hung among the officials and the people with "ancient secret production and inheritance method".
At the end of the Qing Dynasty and the beginning of the Republic of China, Chengfang Hall went through the changes of dynasties and gradually disappeared from sight amid the smoke and fire. After the reform and opening up of the People's Republic of China, the brand name "Chengfangtang" reappeared and was certified by the State Trademark Administration