Committee for pediatric subspecialty board certification of the Korean Pediatric Society (KPA) was established for the subspecialty certification and formal training programs in 2005. Pediatric allergy and pulmonology was the first pediatric subspecialty among 9 subdivisions of KPA to petition for the certification in 2006, and 7 additional subdivisions of KPA, pediatric cardiology, pediatric endocrinology, pediatric gastroenterology and nutrition, pediatric infectious diseases, neonatology, pediatric nephrology, pediatric neurology, respectively, were followed in 2007. Finally, pediatric hemato-oncology joined this program in 2008. An overview and the future of Korean pediatric subspecialties are described.