The length of the fetus at 35 weeks of pregnancy is about 50cm, the weight is about 2500g, the length from the head to the buttocks is about 33cm, the mean value of the biparietal diameter is 8.7±0.55cm, the abdominal circumference is about 27.99±2.55cm, and the mean value of the length of the femoral diameter is about 6.62±0.43cm. The digestive system of the fetus at 35 weeks of pregnancy is basically well-developed, the development of the lungs is about to reach maturity, the liver is able to metabolize some waste products, and the kidneys are fully developed, and the nails have grown longer than the fingertips. The kidneys are fully developed and the fingernails have grown longer than the tips of the fingers. The fetus has completed most of its physical development, its body becomes round and plump looking, and subcutaneous fat gradually forms to help regulate body temperature after birth. At 35 weeks’ gestation, the fetus’ body grows larger, with less room to move and restricted movement. Ultrasound is able to distinguish the baby’s small knees, legs, and arms, and the fetus’ head is turned downward in preparation for labor and delivery. Although the central nervous system of the fetus is not yet fully developed, the development of his lungs is now almost complete and he can basically survive if born at this time. Pregnant women are advised to take appropriate walks, pay attention to diet and hygiene, eat small meals and regular pregnancy checkups to ensure healthy growth of the fetus.