Hongji, life is unknown. According to the textual research of Song Dynasty, the author of China Ancient Atrioventricular Health Collection, Hong Ji, a native of Xin 'an County, Anhui Province in the Ming Dynasty, was originally a Confucian scholar, but he loved medicine and liked to look for medical prescriptions everywhere. Twenty years later, he got tens of thousands of prescriptions. Choose the magical powder prescription and make it into medicine for people to take. The main work is the essentials of taking pictures.