The underlying cause of premature neonatal beats is due to the immaturity of the neonatal cardiac conduction system, which is the anatomic-pathological basis for the development of arrhythmias. Premature neonatal contractions often have more obvious causative factors, such as perinatal asphyxia, hypoxia, infections electrolyte disorders, metabolic acidosis, congenital heart disease, etc. Early onset of premature neonatal beats often has no characteristic clinical manifestations and is easily overlooked. Early detection and early treatment of premature arrhythmias in newborns often lead to a good prognosis.