Slippery tongue may be a manifestation of spleen and kidney yang deficiency (deficiency of yang qi in the spleen and kidneys), which often contains symptoms of deficiency and coldness, and is mostly caused by prolonged illness, dietary indiscretion, and excessive sexual intercourse. Spleen and kidney yang deficiency will often cause moss white greasy slippery for water slippery tongue, often accompanied by tongue pale fat with teeth marks, prolonged diarrhea, prolonged dysentery, lumbar and abdominal cold pain, limb warmth, edema and other symptoms of deficiency cold. Common causes are chronic illness, diet, spicy and fatty food damage to the spleen and stomach, excessive labor damage to the kidneys can not warm the spleen and yang. Spleen and kidney yang deficiency can be seen in the chronic stage of certain diseases, the treatment is based on tonifying the kidneys and strengthening yang (the role of tonifying kidney yang), commonly used medicines, such as the Pill with Pineapple, Right Angelica Pill and so on. In life, we should be optimistic, abstain from sex, do not stay up all night, do not overwork. Diet should eat more warm food, increase nutrition, quit smoking and drinking, prevent cold and keep warm, avoid cold and flu. Water slippery tongue is a symptom of the disease, to timely consultation, active treatment. The above drugs need to be standardized after the physician’s diagnosis and treatment.