Yan Zhenqing was admitted to imperial academy in the 22nd year of Kaiyuan (AD 734). Imperial academy for four times, moved to the temple to serve imperial academy. Rejected by Yang, the powerful minister at that time, he was demoted to the plain (now Shandong) as the satrap, which was called "Yan Plain" in history. During Su Zong's reign, Fengxiang granted the minister of constitutional affairs and moved to the imperial history. During the reign of Emperor Zong, the official went to the official department, the prince was a surname, and the Duke of Lu was named "Yan". In the fourth year of Jianzhong (783), he was framed by Prime Minister Qilu and sent to Li Xilie, the general of the Rebel Army, for advice, and was killed by Li Juan.
In the first year of Tang Daizong Dali (765), Yan Zhenqing was demoted for playing the role of Prime Minister Yuan Zai to block speech. In April of three years (768), Sima Jizhou changed to Fuzhou Secretariat. During his five years in Fuzhou, he was concerned about people's sufferings, agricultural production and public welfare. In view of the present situation that the right channel of Fuhe River is blocked, the port is flooded and the farmland is flooded, the people are led to build a long stone dam in the south of Biandanzhou, a small island in the center of Fuhe River, so as to alleviate the flood and irrigate the fields with water in dry season. In order to commemorate him, Fuzhou people named Shiba Inu as Qianjinpi, and built a temple to offer sacrifices at four o'clock.