Ding Henian is an elegant man, but his family is a medical family. Ding Henian's great-grandfather was a famous old doctor who drank and ate in the Yuan Dynasty (now Beijing). Ding Henian inherited the family style, won back the essence of TCM and the essence of health preservation, and made great achievements in TCM health preservation. I have experienced hardships and witnessed people's lives being smeared with carbon, plagues raging and people dying of illness everywhere. Coupled with the early death of his parents, he strengthened his ambition of "not being a good person and becoming a medical scholar". Wherever he goes, he makes a living by teaching and practicing medicine. While practicing medicine and treating diseases all the way, I traveled to famous mountains and rivers, visited celebrities and saints, talked about poetry, discussed Yi Li, and discussed the method of keeping in good health. He wrote in "Four Poems by Mr. 90": "There are two idle springs, white stone and immortal. Why not like a year? " I'm quite tired of articles that stand in the way, but I'm playing with nature from parity. Dogs burn Dante in the clouds, and dragons plow the fields in the rain. At the end of the year, I can't smell smart things, stay indoors and do nothing. "Its' parity' refers to the boundary of Yin and Yang, and' innate' refers to the Book of Changes. He devoted himself to studying the essence of Yin-Yang theory, the core theory of traditional Chinese medicine. By summing up his own medical practice experience and analyzing the guiding significance of Yin-Yang theory to people's health care, he gradually gained his own unique knowledge and understanding, which laid a solid foundation in the theory of traditional Chinese medicine. In addition, he is good at the processing methods of traditional Chinese medicine and creative in the processing of prescriptions, so many ancient prescriptions, folk remedies and secret recipes he left behind are very practical. He practiced medicine in the war, so many of the patients he treated were trauma caused by the war, plague caused by the epidemic of plague, and weakness caused by long-term hunger and cold, which enriched his practical experience in these areas. Knife-wound medicine, Yugu powder and Spleen-warming decoction developed from ancestral prescriptions are more effective in treatment and prevention, and the types are more abundant. All these laid the foundation for him to establish Heniantang and his unique health care theory in the future. It was when he fled the war that he kept learning the methods of keeping in good health. After the world was basically stable, his ambition of becoming a medical scholar when he was young was demonstrated and realized. So in 1405, that is, in the third year of Yongle, when he traveled to Beijing, he founded the Crane Hall in Caishikou, near niujie, where the Hui people lived, and named it after himself, which included the meaning of "Longevity of Crane" in Huainanzi Shuolin, and also took the meaning of "Longevity of Pine Crane". It can be seen that Ding Crane opened the Crane Hall at the age of 70. Ding Henian, as a master of TCM health care, opened the Crane Hall to help the world, to help the people with medical skills, and to relieve the pain for the world. He hoped that the Crane Hall would live forever and make himself immortal. Although he personally took charge of the Year of the Crane Hall for various reasons, he handed it over to his son. He returned to his hometown of Hangzhou to be a mother for seventeen years, studying the way of keeping in good health. Although he passed seventy years of age, he was still young until he died at the age of 90 and was buried next to Aladdin's tomb, known as "Shi Ding Dragon".