The most important thing for pregnant women to control sugar is to control the total energy intake, and at the same time to increase aerobic exercise appropriately, and also to monitor the blood sugar and so on. High or low blood sugar may jeopardize the health of the pregnant woman and the fetus, so sugar control is very important. Sugar control is important to reduce the intake of sugar and appropriate exercise, but not excessive control of diet leading to malnutrition, otherwise it may jeopardize the health of mother and fetus. Therefore, pregnant women with abnormal blood glucose should follow the doctor’s instructions to eat a healthy diet, and at the same time have appropriate outdoor activities, strict monitoring of blood glucose, fetal development. If necessary, some pregnant women should follow the doctor’s instructions according to the situation of blood glucose control with insulin, rather than simply by restricting the amount of food, the specific drugs need to follow the doctor’s instructions, not blindly use their own medication.