There has not been a consensus or standard of Chinese medicine syndrome identification

which has become a problem in the research of basic theory of Chinese medicine.Investigating the reasons

there are three key problems in improving the accuracy of Chinese medicine syndrome identification.The first one is the determination of the constitutive elements of Chinese medicine single syndrome

which is the objective basis to realize the identification of subjective syndromes.The second is the various possible forms of Chinese medicine syndromes

which is the premise of the consistence between subjective identification and objective existence of the syndrome.The third is to clarify the mathematical logic in the process of Chinese medicine syndrome differentiation

which is the basis of thinking to improve the accuracy of subjective identification of the syndrome.After solving these problems

we can make clear the objective basis of subjective identification of the syndrome

form an important thinking model to improve the accuracy of subjective identification of the syndrome

thus lay a foundation for the establishment of Chinese medicine syndrome identification consensus or standard.