Sun Simiao was a famous physician in the early Tang Dynasty.

Sun Simiao studied Taoist classics in Taibai Mountain, explored the art of keeping in good health, read many medical books and studied ancient medical prescriptions. He chose to "heal the wounded and rescue the dying" as his lifelong career. In order to understand the characteristics of Chinese herbal medicine, he traveled all over the mountains. Sun Simiao also attached great importance to the folk medical experience, constantly accumulated interviews and recorded them in time, and finally completed his immortal book "Thousands of Money". After the establishment of the Tang Dynasty, Sun Simiao began to accept the invitation of the imperial court and cooperate with it to carry out medical activities. In 659 AD, the world's first national pharmacopoeia, Tang Xin Materia Medica, was completed. Sun Simiao died in 682 AD. According to historical records, materia medica, Taoist collections and other documents, as well as the inscriptions on Yaowangshan Mountain in Yaoxian County, Shaanxi Province, there are more than 80 kinds of Sun Simiao's works, many of which have been lost to this day.

Sun Shi thought that "human life is the most important, and it is hard to buy a thousand dollars. While helping it, virtue is beyond this", so he named his two works "Thousand Daughters" and called them "Thousand Daughters" and "Thousand Daughters and Wings". The achievements of these two books are as follows: First, there is an in-depth study of Zhang Zhongjing's Treatise on Febrile Diseases, which provides a way for future generations to study Treatise on Febrile Diseases, especially for generalized typhoid fever. He founded the method of studying Treatise on Febrile Diseases from three aspects: prescription, syndrome and treatment, which initiated the precedent of taking prescription as evidence in later generations. Qian Jin Fang Yao is the earliest medical encyclopedia in China, with complete theories, methods and prescriptions. One is recorded in ancient books, and the other is folk unilateral. Widely absorb the strengths of all aspects, suit both refined and popular tastes, and have appropriate priorities today. Many contents are still instructive and of high academic value, and are indeed valuable wealth of traditional Chinese medicine. Qian Jin Fang Yao is a great contribution to the development of prescription science. This book brings together the clinical experience of hundreds of years' achievements in prescription and medicine from Zhang Zhongjing's time to Sun Simiao. After reading Zhongjing's prescription, watching Qian Jin Fang can really open your eyes and broaden your mind, especially the prescriptions from different origins, which shows that Sun Simiao has a wide range of medical sources and superb medical skills. Later generations called Fang the ancestor of magic.