Regarding Sun Simiao's two books, Qian Jin Fang Yao and Qian Jin Fang Yi, Lin Bu once said: From the beginning of their own words to the end of Sui Dynasty, all medical theories and prescriptions were not adopted, and many new contents were added. Xu Dachun, a famous doctor in the Qing Dynasty, also said: Zhang Zhongjing's theory had great changes in the Tang Dynasty. Zhang Zhongjing's theory of preventing diseases is completely based on Neijing, and the prescriptions used are handed down by ancient saints, not created by himself. Sometimes addition and subtraction are also based on dosage, and there are certain standards. The drugs used are all based on Shennong's herbal classics, not just borrowed. However, Fang is not like this. Sun Simiao's disease theory is not only based on Neijing, but also based on the theories of physicians after Neijing. In addition to the ancient prescriptions, the prescriptions used are also based on the methods of the afterlife. The drugs used are not completely based on Shennong's herbal classics, but also commonly used and effective drugs in miscellaneous prescriptions and unilateral prescriptions; So there are several treatments for a disease, and there is also a method to treat several diseases. This is a major change in medicine. His achievements in building his own family are indelible.