The normal range of 2-hour postprandial blood glucose values for normal people is usually below 7.8 mmol/L. The target range of 2-hour postprandial blood glucose control for diabetic patients is below 10mmol/L. Normal people have the ability to regulate blood glucose, if you eat more, insulin secretion will increase; eat less, insulin secretion will be reduced accordingly, so normal people 2 hours after meal blood glucose is generally not more than 7.8mmol / L. If the 2-hour postprandial blood glucose value exceeds the above range, you need to pay attention to it, and need to control your own diet as well as increase exercise to avoid the blood glucose continues to rise. Continuous elevation of blood glucose need to consult a doctor in time for examination, determined to be the case of diabetes, need to strictly follow the doctor’s instructions to take hypoglycemic drugs to control, to avoid complications.