To form the traditional Chinese medicine seasonal health preservation principles through the expert questionnaire (Delphi method).Methods:We conducted two rounds of surveys of Chinese medicine experts in the field of seasonal health preservation on the basis of previous literature research,aiming to form the framework and entries to the traditional Chinese medicine seasonal health preservation principles.Results:The positive coefficient of experts in two rounds of investigation were 89.58% and 100% respectively.The authoritative degree were both higher than 0.7.Expert opinion score mean median were 8.68 and 8.67.Median mean values were 7.54 and 7.56.The median scores of full marks were 43.9% and 46.15%.The maximum coefficient of variation were 0.27 and 0.21.Conclusion:In the investigation,the experts showed a high enthusiasm and professionalism with a high credibility.The experts' advice was concentrated.With the Delphi method,the framework and entries to the traditional Chinese medicine seasonal health preservation principles had been built.We would do more work through the rest of the standards development work,and further standardize the content of the Guiding Principles.