Due to the poor functional development of the organs, 30-week preterm babies may suffer from sequelae such as cerebral hemorrhage, intracranial hemorrhage, central nervous system, hypoxia, and respiratory distress. Because the function of the nervous system of preterm babies is closely related to the gestational age, the nervous system of 30-week preterm babies is usually not well developed. Physiological reflexes are weaker after birth, which can easily lead to cerebral hypoxia, and the relatively well-developed tissues of the subventricular embryonic germinal layer of the brain are prone to cerebral hemorrhage, intracranial hemorrhage, and sequelae such as the central nervous system. Due to the immature lung development of 30-week preterm babies, the secretion of alveolar surface active substances is less, which can easily lead to pulmonary atelectasis, thus leading to hypoxia, respiratory distress and pulmonary hyaline membrane disease. In addition, since 30-week preterm babies usually require high levels of oxygen, retinal vasoconstriction and hypoxia lead to an increase in growth factors, causing an increase in neovascularization, which can lead to retinopathy. Therefore, 30-week preterm babies should pay special attention to postnatal care, and if abnormalities are detected, they should be treated by specialized doctors for timely intervention.