Early intervention is an effective measure to prevent and reduce the nervous system injury in preterm infants,It can promote the normal development of preterm infants and reduce the occurrence of the nervous system disability.It is vital to improve the comprehensive quality of children and family quality of life. In the stage of premature infant intervention,there are some aspects that are incompatible with the medical ethics principle,i.e. inadequate medical facilities,improper medical measures,lack of professionals,premature infants intervention prognosis uncertainty,the conflict between the timing of treatment and the parents' economic and compliance behaviors,parents' informed choice and informed consent. etc. This paper analyzes the problems in early intervention of 0~3 year old preterm infants and puts forward corresponding suggestions according to the viewpoint of medical ethics.