The normal value of two-hour postprandial blood glucose varies among different groups of people, the value of the general population should be less than 7.8mmol/l, and the two-hour postprandial blood glucose of diabetic patients should be controlled at 10.0mmol/l or less. The two-hour postprandial blood glucose is an indicator reflecting the function of pancreatic secretion, combined with fasting blood glucose, can be a comprehensive judgment of the metabolism of blood glucose. In the general population, the two-hour postprandial blood glucose value should be less than 7.8mmol/l; diabetic patients’ two-hour postprandial blood glucose should be controlled less than 10.0mmol/l. Once found that the two hours after meal blood glucose condition is abnormal, need to be combined with fasting blood glucose and glycated hemoglobin comprehensive judgment, and under the guidance of the doctor to carry out standardized treatment, to avoid causing delays in the condition.