Fetal heart monitoring repeatedly shows that the fetal heart fluctuates too much and is not within the range of 110-16 beats per minute, which needs to be combined with the heart rate, acceleration, deceleration, and variability in order to analyze whether or not hospitalization is needed for treatment. The so-called fetal heartbeat is the heartbeat of the fetus. Through fetal heartbeat monitoring, we can understand the response of the fetal heartbeat during fetal movement, so that we can determine whether the fetus has symptoms of intrauterine hypoxia. If the fetal heartbeat is unstable, it is necessary to be hospitalized for observation to clarify the cause. The normal value of fetal heart is 110 to 160 beats per minute. If the fetus is not in this range for a long time, it is necessary to receive early hospitalization, and the professional doctor will determine whether intervention is needed to avoid asphyxia or hypoxic-ischemic encephalopathy caused by prolonged oxygen deprivation of the fetus. Fetal heart rate monitoring is a very important test in late pregnancy, and it is recommended to perform it on a regular basis, and to consult a specialist for early advice in case of any abnormality.