Apnea of Prematurity (AOP) is common critical symptoms of preterm infants with great harm for prematurity. Recurrent apnea may lead to brain damage caused by hypoxia, affecting the nervous system, even threatening life (1, 2). Therefore, choosing an intervention which can prevent and reduce occurrence of AOP with fewer side effects is an important issue that should be closely watched by neonatal intensive care unit (NICU) health care.