Fetal growth retardation is clinically known as intrauterine growth restriction, which simply means that the fetal growth and development does not match the normal fetal development at the gestational week. There are many reasons for fetal growth retardation, including nutritional deficiency of pregnant women, complications of various diseases during pregnancy, smoking, drug and alcohol abuse, exposure to radiation, toxic drugs, intrauterine infection during pregnancy, fetal chromosomal abnormalities, placental abnormalities, umbilical cord abnormalities and so on. Therefore, if a pregnant woman finds intrauterine growth retardation during her maternity checkup, she should first identify the cause through relevant examinations and exclude fetal abnormalities; then she should pay attention to more rest, left side lying, nutrition and treatment for the cause. During pregnancy, intravenous supplementation of amino acids, energy combination, glucose and other nutrients can be used. Medication can be used to improve the blood flow to the uteroplacenta and promote the growth and development of the fetus by using drugs to relax the blood vessels and relax the uterus; salvia can be used to maintain placental blood perfusion. At the same time, the fetal health condition should be closely monitored until the fetus is delivered. If the fetus is in good condition, the placenta is functioning normally, the pregnancy is not full term, and the pregnant woman has no comorbidities or complications, the pregnancy can be monitored closely until full term delivery. If the following conditions occur after treatment, such as no improvement of fetal condition, fetal growth stop for more than 3 weeks, aging of placenta with low placental function such as low amniotic fluid, fetal hypoxia, aggravation of pregnancy complications and complications, continuing pregnancy will endanger the health or life of mother and child, pregnancy should be terminated as soon as possible. In summary, fetal growth retardation requires active search for the cause, supplementation of nutrition and use of drugs to promote fetal growth and development. If the pregnant woman is in good condition, the fetus is in good condition, and the fetus is not yet full term, the pregnancy can be terminated until full term; if the pregnant woman or the fetus is in poor condition, the pregnancy should be terminated in time.