OBJECTIVE： To provide reference for the clinical pharmacists to apply syndrome differentiation of eight principles theory for TCM consultation services. METHODS： Several examples were given to illustrate the practice of the theory guiding patients’ medication consultation in respect of Chinese herbal medicine differential medication， Chinese patent medicine differential medication， dietary taboo， etc. According to the author's many years of work experience， from the three aspects of the counselor， the consultant， and the consulting conditions， the reasons that TCM consultation window couldn’t provide the medical staff and patients with rational TCM use suggestions and appropriate diet were analyzed. RESULTS & CONCLUSIONS： The syndrome differentiation of eight principles theory is based on four diagnostic methods to collect and analyze symptoms， signs and other information comprehensively. The information were divided into eight types of syndromes as yin and yang， exterior and interior， cold and heat， deficiency and excess， so as to determine the theory of basic syndromes of disease. The suggestions on rational drug use and appropriate diet were provided for the patients by using syndrome differentiation of eight principles theory. In view of the lack of knowledge and ability of the clinical pharmacists on syndrome differentiation of eight principles theory， the unfamiliar service scope of the clinical pharmacists in TCM consultation service， and the lack of consultation conditions for the use of TCM， it is suggested that the clinical pharmacists should learn more about the syndrome differentiation of eight principles theory； TV， WeChat and other media guide public dialect use of Chinese herbal medicines， Chinese patent medicines and appropriate diet； hardware conditions for TCM consultation by establishing TCM consultation rooms and TCM consultation clinics are establish so as to improve the level of clinical pharmacists’ TCM consultation services.