With the birth rate and survival rate of premature infants significantly increased, the risk of premature infant-related complications after discharge also gradually increased. Due to the parents′ lack of care experience to take care of premature infants, premature infants are prone to high re-admission rate, family pressure and burden. Therefore, strengthening transitional care, promoting the safe transition of premature infants from neonatal intensive care unit to home, and promoting the growth and development of premature infants are of great significance to improve the quality of life of premature infants. Transitional nursing of premature infants abroad has been carried out for nearly 30 years, while domestic research is still in its infancy and has not been carried out in a wide range of research and application. Therefore, this article summarized the concept, significance and nursing mode of premature infant transitional care, so as to provide reference for medical personnel to carry out premature infant transitional care.