Meal blood glucose 8.2 should be 2 hours after meal blood glucose 8.2mmol / L, for diabetic patients, belongs to the sugar control standard, there is no obvious effect on the body; for the undiagnosed population, belongs to the glucose tolerance is impaired, without timely intervention is easy to develop into diabetes, and even diabetic nephropathy, diabetic retinopathy and other complications. Normal 2-hour postprandial blood glucose is less than 7.8mmol/L, 7.8~11.1mmol/L for impaired glucose tolerance, ≥11.1mmol/L at the same time diabetes symptoms can be diagnosed as diabetes. Therefore, 2-hour postprandial blood glucose 8.2mmol/L is impaired glucose tolerance and should be controlled by diet and appropriate exercise, otherwise it is easy to develop diabetes. For diabetic patients, the goal of glycemic control is generally non-fasting blood glucose does not exceed 10.0mmol/L. So 2 hours after meal blood glucose 8.2mmol/L, to achieve the standard of glycemic control, generally will not cause serious impact on the patient’s body, continue to adhere to glycemic control treatment. If the patient’s blood sugar is abnormal, he should go to the endocrinology department of the hospital, improve the auxiliary examination to make a clear diagnosis, and carry out systematic treatment under the guidance of the doctor.