His birth and death years were ominous. During the Northern Song Dynasty, Yuan Youjian (1086-1093) was famous for his medical skills. His ancestral home is Langzhong (now Langzhong, Sichuan), and he is the great-grandson of Chen Yaozuo, the famous prime minister in the early Song Dynasty. Chen Cheng lost his father when he was young, and moved with his mother to the Liao-Huai region, where he practiced medicine and took care of the family. It has many miraculous effects on clinical symptoms. He likes to use cold medicine and is famous far and wide. Chen Cheng once merged Jiayou's supplementary notes Shennong Bencao and Tujing Bencao, with ancient and modern commentaries and personal observations, in the seventh year of Yuanyou (1092) compiled into 23 volumes of Chongguang's Supplementary Notes Shennong Bencao and Illustrated Classics. Chen Cheng also participated in the printing press bureau during the Daguan Period (1107~1110) 's correction and addition work, the official will handle the medicine and review the prescription book.