Bi syndrome is a disease name in traditional Chinese medicine（TCM） with super efficacy. Around the issue of diagnosis criteria of Bi syndrome

this study reviewed the ancient literature on Bi syndrome

and summarized the exsiting diagnostic criteria. It is believed that the development of diagnositic criteria of Bi syndrome should highlight the characteristics of TCM thinking and theory

connotation and characteristics of Bi syndrome

the fusion of TCM and western medicine

and clinical practice. Through clinical research and combination of the suggestions of famous and experienced TCM doctors

the diagnositic criteria of Bi syndrome that in line with TCM theory and does not vilate the conventional principle of western medicine

covering patient′s clinical manifestations

inducing factors

attack time was developed in order to better serve TCM clinical practice and scientific research.