"Mountain Doctor Enters the Capital" takes the growth and transformation of young Chinese medicine doctor Lin Yanqiu as the main line. It tells the medical legend of Lin Yanqiu, a young Chinese medicine practitioner, who broke into the modern city from a remote mountain village with half a volume of "Qing Sang Sutra" passed down by his grandfather and family acupuncture techniques. He has been adhering to the concept of "treating based on syndrome differentiation and nourishing people with medicine" since childhood, but he has had a fierce collision with the modern medical system that relies on instruments and pursues quick results. When he first entered the city, he encountered multiple difficulties such as doubts about his qualifications, patient distrust, capital squeeze, and even got involved in medical disputes. However, Lin Yanqiu has always adhered to his benevolence, using acupuncture to resolve emergencies and using classic prescriptions to treat serious illnesses. From curing difficult and miscellaneous diseases that Western medicine has no control over to solving emergencies, he has gradually won a reputation. In the process, he searched for the lost authentic relics of the "Qing Nang Sutra", uncovered the mystery of his grandfather's retirement, resolved the barriers between schools of traditional Chinese medicine, and integrated traditional and modern technology to establish "Qing Nang Tang". The novel is interspersed with real doctor-patient stories and incorporates professional knowledge such as Chinese herbal medicine, acupuncture, and processing. It not only shows the breadth and depth of traditional medicine, but also explores the propositions of inheritance and innovation, medical ethics and benefits. It depicts Lin Yanqiu's transformation from "mountain medicine" to "traditional medicine" and demonstrates the persistence and breakthrough of traditional Chinese medicine in the wave of the times.