This book is the complete medical collection of Tang Rongchuan, a famous doctor in the late Qing Dynasty. It systematically includes "Treatise on Blood Syndrome", "Essence of Chinese and Western Medical Classics", "Questions and Answers on Materia Medica" and other handed down works. Tang Rongchuan, whose name was Zonghai and whose courtesy name was Rongchuan, was the founder of the school of integration of Chinese and Western medicine. When the theory of Western medicine poured into China, many scholars were confused and confused as to what to do. With his profound vision, he not only studied the subtleties of the "Nei Jing" and "Shang Han", but also considered the empirical evidence of Western medical anatomy, and put forward the grand concept of "integrating Chinese and Western medicine". His discussion on blood syndromes is especially known as his unique knowledge. His analysis is thorough and consistent, and his theories, methods and prescriptions are still focused on clinical practice today. The book is grand in outlook and rigorous in argumentation. It is not only a clinical guide to clinical diagnosis and treatment, but also a record of the thoughts of modern Chinese medicine seeking new life in the collision. Opening this book, you will see how a great doctor stayed upright and innovated amidst the changes, opening up a new way for Chinese medicine to connect China and the West.