Objective: The objective of this study is to explore the treatment and compatibility principles of Traditional Chinese Medicine. Materials and Methods: Syndrome differentiation is used to identify the etiology, nature, and location of a disease and the relationship between the healthy Qi and pathogenic factors by analyzing and synthesizing the four diagnostics data. The theory of treatment is to determine the principle and methods of treatment according to the results of syndrome differentiation and implement them as a specific prescription. This paper bears witness to the principle universality by analysis of the articles of the Banxia Xiexin Decoction, and it equally has analogical prescriptions in Treatise on Febrile Diseases. Results: The treatment and compatibility principles of Traditional Chinese Medicine are the same, that is, rectifying the deviation on three dimensions, strengthening the healthy Qi, and eliminating pathogenic factors in the light of its general trend. Conclusion: The treatment and compatibility principles of Traditional Chinese Medicine are the same, The treatment and compatibility principles provide a new thinking for clinical treatment.