Objectives: The purpose of this study is to investigate clinical features of children and adolescents patients admitted to the oriental medical hospital. Methods: The study composed of 1284 inpatients aging from 0 to 19 who had been admitted in 4 oriental medical hospitals located in Daejeon and Chungcheong. Results: 1. In this study, 688 boys and 715 girls were examined, giving the ratio of 0.96:1. Average age of the children and adolescents was 11.5, and the number of inpatients has increased as getting older. 2. The percentage of children and adolescents inpatients has increased every year : 9.1% in 2005, 13.0% in 2006, 13.8% in 2007, 16.3% in 2008, 18.0% in 2009, with 22.2% in 2010, 7.8% until May 2011. The month scored the highest admittance was December and the lowest was March. 3. In systemic division, the musculoskeletal system was the most common, followed by neuromuscular system, respiratory system, digestive system, psychological system, and nervous system. 4. Most patients have admitted in acupuncture & moxibustion department, followed by oriental pediatrics, oriental rehabilitation medicine. 5. In Pediatrics, 196 boys and 166 girls were admitted. The age distribution showed that 6.4% were in infancy, 43.6% in preschool period, 30.1% in prepuberal period, 18.8% in early puberty and 1.1% in late puberty. The percentage of pediatrics inpatients has increased every year. Conclusions: More data of patients should be collated for further study. More detailed study with different kinds of diseases are expected based on this study.