Decreased fetal movement at 36 weeks of pregnancy is usually an abnormal condition. First of all, we should confirm whether it is reduced fetal movement. Due to the continuous development of the fetus and the small space in the uterus, the fetus may be restricted in its activities, and the fetal movement in the form of big turning over will not be particularly frequent, thus making the pregnant woman mistakenly believe that the fetal movement is reduced. Secondly, if a pregnant woman is particularly obese and insensitive to fetal movement, she may also have the illusion of reduced fetal movement. Pregnant women should pay attention to counting fetal movements, choosing one hour in the morning, one hour in the middle and one hour in the evening. Usually, 3-5 fetal movements per hour is normal. If the number of fetal movements is too many or too few, it is often abnormal and the pregnant woman must be alerted and recommended to seek medical treatment immediately. The decrease in fetal movement often indicates acute or chronic intrauterine oxygen deprivation. Acute fetal intrauterine hypoxia often occurs during labor, while chronic hypoxia often occurs in late pregnancy, but often manifests as acute fetal intrauterine distress at the time of delivery. Fetal 3D ultrasound should be done after the decrease in fetal movement, noting whether the amniotic fluid volume is normal, which is usually accompanied by a decrease in fetal movement when the amniotic fluid volume is significantly reduced. The first thing the pregnant woman needs to do is fetal heart monitoring. If the fetal heart monitoring is responsive, it means the fetus is safe in the uterus. If the fetal heartbeat and fetal movement return to normal after intrauterine resuscitation, she can continue to go home to wait for delivery. If the symptoms are not relieved, early cesarean delivery is needed to terminate the pregnancy if necessary.