The glucose control standards for pregnant women are more stringent. A glucose tolerance test is done at 24-28 weeks of pregnancy, with fasting glucose >5.1mmol/L, 1-hour postprandial glucose >10mmol/L, and 2-hour postprandial glucose >8.5mmol/L, any point of which reaches the standard can confirm the diagnosis of gestational diabetes. The ideal control standard is fasting blood glucose <5.3mmol/L, 1 hour blood glucose <7.8mmol/L, 2 hours post-meal blood glucose <6.7mmol/L. During pregnancy, it is necessary to ensure the nutritional supply of the fetus and to control one's own blood glucose to meet the standard. First of all, the diet should be reasonable, not only comprehensive but also not excessive, and fruits should be eaten in small amounts between meals. The diet should be light with less oil, and more exercise can be done after eating, choosing walking as appropriate. If the blood glucose can not reach the standard under the premise of diet and exercise control, you can consider the application of insulin to lower sugar.