Preventing preterm labor includes enhancing nutrition during pregnancy, psychological counseling and preventing reproductive tract infections. 1. Enhance nutrition during pregnancy: Malnutrition of pregnant women will lead to growth restriction of the fetus, and the weight of the baby will be low compared with other premature babies, which is also one of the important causes of preterm labor. Pregnant women should pay attention to adequate nutrition during pregnancy. 2. Psychological guidance: Pregnant women with prenatal psychological tension, anxiety or depression should actively improve their psychological state through self-psychological adjustment or counseling by a psychiatrist to restore a calm state of mind and prevent preterm delivery. 3. Preventing reproductive tract infections: In late pregnancy, pregnant women must strengthen the cleanliness and hygiene of the pubic area to prevent the occurrence of bacterial vaginitis and avoid intrauterine infections and preterm labor. Sexual intercourse is prohibited in late pregnancy. If pregnant women show signs of preterm labor, it is recommended that they seek medical attention in a timely manner and be treated under the guidance of a doctor.