Fetal heart rate is normal between 120-160 beats per minute, when the fetal heart rate reaches 180 beats per minute, if once in a while, it may be a frequent fetal movement resulting in a short acceleration of the fetal heart rate, and generally the fetal movement can be returned to normal after stabilizing. If the fetal heart rate is too high, usually consider the following reasons: 1, high body temperature: if the pregnant woman has a fever that does not go away, it will lead to high temperature in the uterus, which will cause high fetal heart rate, and should be excluded in time; 2, overwork: because of the pregnant woman’s recent excessive fatigue, which can affect the normal heart rate of the fetus, pregnancy should be combined with work and rest to avoid fatigue; 3, disease: when the pregnant woman has hyperthyroidism, hyperemesis, hyperemesis gravidarum and other diseases, it will affect the normal heart rate. Hyperthyroidism, hyperemesis gravidarum, diabetes, anemia and other diseases, can lead to insufficient oxygen in the blood, causing fetal heart rate, pregnancy should pay attention to a healthy diet, for the active treatment of the disease; 4, fetal hypoxia: due to placental hypoplasia, placental developmental disorders, or umbilical cord bypassing the neck, kinking and other reasons lead to the obstruction of the blood flow, resulting in fetal hypoxia, pregnancy should be regular obstetrics examination to detect the placenta, and promptly deal with the abnormal situation. In addition, due to other diseases of pregnant women taking certain drugs can also lead to rapid fetal heartbeat. The cause of rapid fetal heart rate should be clarified, the function of the placenta and amniotic fluid should be checked in time, and reasonable treatment should be carried out under the guidance of doctors.