Although diabetes is an incurable chronic disease, but it is not a terminal disease, there are studies show that long-term control of blood sugar to meet the standard, the life expectancy of diabetics and normal people is the same. First of all, we should have a correct understanding of diabetes, diabetes is not terrible, what is terrible is the complications, the complications of diabetes include diabetic ketoacidosis, hypoglycemic coma, hyperglycemic hyperosmolar syndrome, cardiovascular accidents due to hyperglycemia, diabetic nephropathy, diabetic retinopathy, diabetic foot, etc., these are the important causes of life-threatening. Secondly, we should set up a correct view of the disease, and once we find that the blood sugar is elevated, we should not have a pessimistic and negative mentality, but remain positive and optimistic, go to regular medical institutions as soon as possible, and carry out standardized and reasonable glucose-lowering treatment under the guidance of specialists, and regularly monitor blood sugar in the future, eat and live healthily, exercise in an appropriate amount, quit bad habits, and control blood sugar to reach the standard for a long time, so as to prevent and delay the the occurrence of complications. Therefore, the length of life of diabetes cannot be generalized, but is closely related to the patient’s own blood sugar control and the severity of complications.