Abstract：In Chinese medicine，it is believed that sweat syndrome is a kind of disease caused by abnormal sweat excretion due to imbalance of yin and yang， disharmony of nutritive qi and defensive qi， and dysfunction of opening and closing of striae and interstices. Sweat syndrome includes abnormalities in the timing， location， volume， colour and nature of sweat. Xuanfu may refer to the sweat pores and interstices，is a microscopic structure that spreads all over the body. Professor SHI Weiqun believes that the pathogenesis of sweat syndrome is imbalance of yin and yang， disharmony of nutritive qi and defensive qi， and blockage of sweat pores. In the treatment of the syndrome， he advocated the harmonization of yin and yang as the root and the unblocking sweat pores as the branch，and focused on the harmonization of nutritive qi and defensive qi throughout the treatment. Based on the theory of Xuanfu， he also created three methods to unblock sweat pores， which were opening sweat pores， consolidating sweat pores， and nourishing sweat pores. His therapy exerted a significant therapeutic effect on sweat syndrome. Therefore，the authors selected cases of Professor SHI applying Xuanfu theory to treat people who had hemilateral sweating， who had spontaneous sweating，and who had no sweat，and analyzed the clinical experience.