How long a person can live with ketoacidosis varies from person to person, and usually with active and effective treatment, it will not affect the patient’s life expectancy. Diabetic ketoacidosis is a very common disease in the endocrinology department and is one of the acute complications of diabetes mellitus. Generally, when the patient’s blood sugar is poorly controlled and stressful changes occur at the same time, it will lead to ketoacidosis, whose clinical manifestations are mainly nausea, vomiting, weakness, abdominal pain, and even coma in severe cases, which can endanger life. Patients with ketoacidosis must be given symptomatic treatment in a timely manner. If patients do not have combined cardiovascular and cerebrovascular diseases, and if treatment is timely and effective, recovery can usually be obtained without affecting the survival of patients. Patients with ketoacidosis are advised to maintain an optimistic attitude towards life, avoid exertion and cold, eat regularly and quantitatively, pay attention to blood glucose monitoring and exercise appropriately.