The 35-week lung-promoting injection is generally required to live in the incubator, 35 weeks belongs to the preterm baby, its organs have not yet developed soundly, is required to live in the incubator. 35 weeks to promote lung injection can promote the maturation of fetal lung function, but earlier than 37 weeks of newborns still belong to the preterm baby, although the lung function may have matured, but the development of its systems are not yet sound, prone to a variety of neonatal diseases, such as neonatal pneumonia, sepsis, etc., the serious can occur death, so need to live in the incubator for 2-3 days for careful care. Into the incubator of the newborn, timely monitoring of vital signs, general vital signs stable, newborn feeding normal, and the face of the red, can breathe on their own, can be carried out of the incubator, transferred to the general ward to continue to observe. 35 weeks with a lung-promoting injection is generally required to live in a warming box, the specific should be carried out under the advice of the doctor.