During pregnancy, blood sugar can be controlled by adjusting dietary structure, appropriate exercise and medication. 1. Adjust the dietary structure: staple food is recommended to be mainly coarse and fine, such as mixed grain rice, whole wheat bread, etc. It is not suitable to eat refined rice, refined noodles, sweets, fried food, such as congee, doughnuts, cakes, etc., which can be combined with low glycemic index fruits. Eat on time, eat less and more meals to control sugar. 2. Appropriate exercise: after meals, you can reasonably carry out low-moderate intensity exercise, such as walking, doing housework, and so on. 3. Medication: If gestational diabetes has been diagnosed, insulin treatment can be carried out under the guidance of the doctor. In addition, pregnant women should also closely monitor blood glucose to understand the changes in blood glucose, such as poor control of timely medical care, under the guidance of the doctor to adjust the sugar-lowering program.