The theory of "seven relations"of Chinese materia medica is gradually accumulated in the long-term clinical practice of traditional Chinese medicine（TCM） physicians of generations.It is an important basis for the theory of prescription composition and application of prescriptions

and is also the theoretical basis for clinical prescription.Mastering the theory of"seven relations"is of great significance for Chinese materia medica to increase efficiency

reduce toxicity

and ensure the safety of clinical medication.The unification and standardization of terminology are of great significance.The expression of the concept of "seven relations"in ancient medical works shows different characteristics in different historical periods.Through tracing and reviewing relevant literatures

the theoretical sources are sorted out and interpreted from the beginning

formation

enrichment

evolution

maturity and perfection

as well as the specific records of"seven emotions"drugs.The development of this term is analyzed

providing a reference for the proper application of the specification and related terms.