The effect of Gui Zhi Tang in the treatment of incessant sweating must be diagnosed and treated, and if it is in accordance with the diagnosis, it has better clinical efficacy. Gui Zhi Tang can be used to treat incessant sweating, but the etiology of incessant sweating needs to be considered; if incessant sweating is caused by Ying-Wei disharmony, Gui Zhi Tang is suitable; for other sweating cases such as those caused by the prevalence of evil heat and dampness-heat internalization, Gui Zhi Tang is not suitable. Ying-wei disharmony refers to the imbalance between the wei qi on the surface of the body and the ying qi in the body, resulting in the opening of the couper (pores) and perspiration. Gui Zhi Tang consists of Gui Zhi, Paeoniae Lactiflorae, Ginger and Jujubes, which has the effect of relieving the muscles and releasing the Qi (by sweating, etc., so that the evil Qi trapped on the surface of the muscles can go out), and regulating the Ying and Wei (so that the internal and external Qi of the human body can be smooth and do their own jobs). Clinically, it is mostly used for the fever and sweating caused by the external surface syndrome (mainly manifested as respiratory symptoms after feeling the external evil qi), in addition to the unexplained low-grade fever, post-partum and post-disease low-grade fever, and more than sweating, etc., which belong to the Ying-wei disharmony are all applicable. However, it should be noted that, Gui Zhi Tang can not treat the external sensation of the surface of the solid without sweating, so it is best to need to go through the physician’s identification of the guidance before use, not blindly use their own medication.