Peeling fur refers to the partial or complete shedding of tongue coating,which often has a variety of manifestations.The immune function of patients with peeling fur is poor,which is related to genetic and physical factors.In addition to qi and yin deficiency,the pathogenesis includes qi and blood deficiency,yang deficiency,phlegm turbidity or blood stasis block.Peeling fur is common in patients with malignant tumors,which plays a guiding role in judging the prognosis of tumors and patients'tolerance to anti-tumor drugs.The treatment of peeling fur often adopts the methods of replenish qi and nourishing yin,replenish qi and blood,as well as the methods of replenish qi and invigorating spleen,dispersing stagnated liver qi for relieving qi stagnation,promoting blood circulation for removing blood stasis,nourishing yin and purging fire.In this paper,through graphic form,the common types of peeling fur are listed,and the tongue image of tumor peeling coating is deeply analyzed to provide a reference for clinical practice.