Pregnant women’s one hour postprandial blood sugar 8.4mmol/L is generally not serious and falls within the normal range. The normal range of blood glucose of pregnant women one hour after meal should be less than 10.0mmol/L, so the blood glucose of 8.4mmol/L one hour after meal belongs to the normal range, which is not considered serious; in addition to that, the normal blood glucose range of pregnant women two hours after meal should be less than 8.5mmol/L. It is recommended that pregnant women do regular blood glucose checkups, once found that the blood glucose is elevated when you need to consult a doctor in time, strict dietary control, maintain a low-salt, low-sugar, low-fat diet, control the total calorie intake, and appropriate physical exercise, such as walking, etc.; if the dietary control, exercise can not be good control of glucose in pregnant patients can be prescribed by the use of insulin injection therapy. It is recommended to go to the hospital when abnormal blood glucose value occurs.