Pattern is a unique way to identify disease in traditional Chinese medicine. As the basis and essence of TCM theory,it plays a key role in connecting principles,strategies,formulas and medicinal substances of TCM. Clinically,the etiology,pathogenesis,location,status and other characteristics of disease are discovered through pattern differentiation,which serves as a basis for treatment. Based on the principle of suiting the prescription to the pattern to achieve its efficacy,this paper analyzes the interconnection between patterns, prescriptions and Chinese medicinal substances to construct th...