Pregnant women can give birth only after 39 weeks when their blood sugar control is stable with insulin, and those with unstable blood sugar control should terminate their pregnancy at the right time under close monitoring. Gestational diabetes mellitus will increase the risk of gestational hypertension, macrosomia, obstructed labor and other pregnancy risks, a clear diagnosis of diet and exercise to follow the doctor’s instructions to control blood glucose, if necessary, to follow the doctor’s instructions to give insulin control. When the blood glucose control is stable after insulin treatment, the pregnancy can be terminated after 39 weeks of pregnancy, and when the control is not stable, the pregnancy should be terminated at the right time under close monitoring. During pregnancy, we should follow the doctor’s instructions to have prenatal checkups on time, and timely detect pregnancy complications or complications, such as gestational diabetes mellitus, gestational hypertension, etc., and intervene in time under the guidance of the doctor to reduce the risk of pregnancy, and terminate the pregnancy according to the development of the disease in order to ensure the safety of mothers and infants.