Postprandial blood glucose is generally measured 2 hours after the meal, 8.5mmol / L for the general population is considered high, is not normal, but has not yet reached diabetes; for diabetic patients is not high, belongs to the glycemic control standards. 1. General population: 2-hour postprandial blood glucose less than 7.8mmol/L is normal, 7.8 to 11.0mmol/L for impaired glucose tolerance, ≥ 11.1mmol/L with diabetes symptoms can be diagnosed as diabetes. So 8.5mmol/L is considered high, but has not yet reached the diagnostic criteria for diabetes. 2. Diabetic patients: For diabetic patients, non-fasting blood glucose should not exceed 10.0mmol/L. 2-hour postprandial blood glucose result is 8.5mmol/L, which is the basic performance of blood glucose control, and need to continue to control. When postprandial blood glucose is abnormal, it is necessary to actively consult the doctor and follow the doctor’s instructions for reasonable treatment.