Abstract：To summarize and introduce Professor JI Yunxi's clinical experience in treating xerostomia with internal retention of phlegm and fluid type by warming and removing，raising，resolving and moistening therapy. Xerostomia is embodied by reduced fluid and humor in mouth and a sense of dry and belongs to the category of dry impediment in Chinese medicine. Professor JI Yunxi's clinical experience shows that when the main complaint is dry mouth， less patients are with exuberant heat and fluid depletion and instead more with internal retention of phlegm and fluid. Professor JI Yunxi believes that the core pathogenesis of xerostomia caused by internal retention of phlegm and fluid lies in the root cause of yang deficiency and branch cause of fluid stagnation and he puts forward the four methods of warming and removing， raising， resolving and moistening. The modified Wuling Powder and Erchen Decoction as the basic prescription is often used for warming and removing，self-formulated Shengjin Siwei Decoction is adopted flexibly for raising， the combination use of Wuling Powder and medicines for mild infiltration and diuresis is for resolving， and moistening is usually achieved by mild medicines for engendering fluid to mitigate acute dryness. The treatment by syndrome differentiation in clinical can render a good curative effect.