Li Chunfeng (602- 670) was from Fengxiang, Qizhou (now Fengxiang County, Shaanxi Province) during the Sui and Tang Dynasties. The "Old Book of Tang: Biography of Li Chunfeng" and the "New Book of Tang: Biography of Fang Ji" record that his ancestors were from Taiyuan. Fu Bo, a high-ranking official in the Sui Dynasty and a lieutenant in the Tang Dynasty, resigned from his position to become a Taoist. He is quite literary and calls himself Huang Guanzi. Chunfeng was erudite and well-informed, proficient in astronomy, calendar calculation, Yin and Yang, and divination. In the early years of the Zhenguan era, in response to Fu Renjun's successive objections, he was appointed as a general and appointed directly to the Taishi Bureau. In the fifteenth year (641), Dr. Taichang was removed. Soon after, he was promoted to the position of Grand Historian. Prefabricate volumes such as "Astronomy", "Law and Calendar", and "Five Elements" in the "History of the Jin Dynasty" and "History of the Five Dynasties". He also wrote "Wen Si Bo Yao". In the 22nd year (648), he was promoted to the position of Grand Historian. In the second year of Longshuo (662), he was reassigned as a Secretary of the Secretariat. At that time, the "Wuyin Calendar" was gradually deteriorating. Chun Feng further modified Liu Zhuo's "Huangji Calendar" and revised it into the "Linde Calendar" for submission. At that time, everyone praised it as precise. At the beginning of the Xianheng era, the official title was restored to its original state, and it was returned to the position of Grand Historian. He died of illness in the third year of the reign of Emperor Gaozong (670). His works, such as "Jin Suoliu Zhu Yin" and "Tai Shang Chi Wen Dong Shen SAN Zhuan Zhu Zhu", are included in the "Taoist Canon".