The most common cause of morbidity and mortality of children between the ages of 28 days and 5 years is still community-acquired pneumonia (CAP), it affects children worldwide and poses a serious risk to their health as well as a financial strain on healthcare systems. Congenital heart disease (CHD) is the most common cause of major congenital anomalies (approximately 28%), representing a major global health problem. Many previous studies showed that CHD are considered an underlying cause of recurrent pneumonia in children. According to multiple studies, the prevalence of bacteremia among hospitalized children who have community-acquired pneumonia has changed recently, and there have also been changes in the epidemiology and management of pneumonia. The risk factors etiology, complication, management of pneumonia will be summarized.