Due to the popularization of Western medical knowledge and the changes of people's medical habits, most of the fever patients consulting to TCM treatments are bad diseases and symptoms of Western medicine with unclear diagnosis, poor efficacy or ineffectiveness. The condition is complex and diverse, and clinical diagnosis and treatment is difficult. Professor BAI Changchuan is the instructor of the first national famous Chinese medicine practitioner and the national traditional Chinese medicine expert academic experience inheritance work. He has devoted himself to clinical teaching and research for more than 50 years. He is familiar with the four classics of Chinese medicine and cold-warm theory, and is good at treating various febrile diseases. He has been invited to consult various departments fever patients and has accumulated a wealth of clinical experience. It believed that internal injuries and fever can be discussed from the "latent pathogenic factors", with fever as the main disease and the complicated symptoms to determine the pathogenesis, and the prescription in Treatise on Febrile Diseases would be expanded. According to the latent pathogenic factors in different parts of the viscera and meridian, combined with febrile and warm diseases treatment, the meridians and combined prescriptions can achieve the curative effect of eliminating disease and clearing away evil heat.