Salty mouth may be due to kidney yin deficiency or kidney yang deficiency, which is manifested by a salty taste in the mouth, which is common in kidney deficiency or cold syndrome. The etiology of salty mouth is deficiency of kidney yin and inflammation of deficiency fire; or deficiency of kidney yang and flooding of cold water, all of which can cause salty taste in the mouth. Because salt enters the kidney, salty mouth is mainly related to the physiological malfunction of the kidney, whether it is a deficiency of kidney yin or kidney yang can make the patient feel salty taste in the mouth, and the clinical medication can also be used to treat it. The spleen opens the orifices in the mouth, and the five tastes correspond to the five organs, so the abnormal taste can reflect the spleen and stomach function and the disease of other organs. When the patient’s mouth salty, please consult a doctor in a timely manner, under the guidance of the doctor’s reasonable use of drugs, do not blindly use drugs, so as not to delay the condition.