Whether diabetes mellitus postprandial blood glucose 7.1mmol/L is serious or not should be known about the patient’s fasting blood glucose level and whether it is accompanied by serious complications. Simple postprandial blood glucose level 7.1mmol/L, blood glucose control is relatively good, such as fasting blood glucose in the normal range, no associated complications, the condition is not serious, you can continue the current treatment program. If postprandial blood glucose control is good and fasting blood glucose level is high, or the patient has obvious cardiovascular and cerebrovascular diseases, such as coronary heart disease, cerebral infarction, etc., the condition is more serious, on the basis of controlling the blood glucose, but also to control the level of blood lipids, blood pressure level, to reduce the incidence of cardiovascular and cerebrovascular diseases, in addition, need to pay attention to avoid the occurrence of hypoglycemia. Patients are advised to monitor their blood glucose regularly and review the complications regularly.