An increase in maternal circulating blood volume, an increase in heart burden, a decrease in heart beat volume, and an inadequate coronary blood supply after pregnancy can cause angina pectoris. In addition, angina can be caused by hypertension during pregnancy, emotional stress and other causes of vasospasm. Pregnant women belong to a special group and need to go to the hospital in time for detailed examination such as ambulatory electrocardiogram and cardiac ultrasound by cardiovascular specialists to check whether angina is really occurring and take scientific and reasonable treatment measures. Pregnant women should be closely monitored during the course of pregnancy and pay attention to rest. To prevent angina, it is necessary for pregnant women to have regular maternity checks, choose a light, nutritious diet, avoid overeating and overworking, and ensure adequate sleep.