Premature infants at 30 weeks are treated smoothly in hospital for about 4 weeks. Premature infants face more complications, common ones are respiratory complications such as respiratory distress syndrome, which require tracheal intubation and application of pulmonary surface active substance, the cost of pulmonary surface active substance is relatively high, the cost of one is between 3000-4000, and severe cases require ventilator assisted breathing. Another reason for long hospitalization is feeding intolerance, substandard milk quantity and substandard weight of preterm infants, who can be discharged only when their milk quantity reaches 30 ml and their weight reaches 2 kg. Electrolyte disorders and neonatal jaundice are relatively common complications, and the total hospitalization cost is around 30,000, with regional differences depending on the severity of the child’s condition.