Postprandial blood glucose generally refers to 2 hours postprandial blood glucose, whether blood glucose 9.7mmol/L is normal at this time depends on which type of people it is for. There are different requirements for general population, pregnant women and diabetic patients, but most cases belong to abnormal situation.1. General population: normal people’s blood glucose 2 hours after meal does not exceed 7.8mmol/L, therefore, postprandial blood glucose 9.7mmol/L is higher than normal value, which belongs to abnormal situation, but it does not reach the diagnosis standard of diabetes, which belongs to abnormal glucose tolerance. Both abnormal glucose tolerance and impaired fasting glucose belong to the early manifestation of diabetes mellitus, that is, pre-diabetes mellitus. Therefore, we should pay high attention when there is postprandial blood glucose 9.7mmol/L, and we can review it after 3 months, or we can do glucose tolerance test in time. 2. Pregnant women: For pregnant women, postprandial blood glucose reaches 9.7mmol/L, which may be gestational diabetes. Normal blood glucose during pregnancy should not exceed 10.0mmol/L for 1 hour after meal, 8.5mmol/L for 2 hours after meal, and 5.1mmol/L for fasting. Any point exceeding the above values can be diagnosed as gestational diabetes. Some patients with gestational diabetes can return to normal blood sugar after delivery, while some women’s blood sugar still does not return to normal 6 weeks after delivery, and should be treated according to the diagnosis of diabetes; 3. For diabetic patients with other diseases, such as cerebral hemorrhage, cerebral thrombosis, myocardial infarction, etc., the patients have problems such as old age and mobility problems, so they are generally not required to control their blood glucose very strictly, at this time, the blood glucose 9.7mmol/L after meal can be regarded as normal.