We have reviewed 9009 pediatric age group patiests visiting the emergency room in Busan National University Hospital during the last 8 years and 8 months period from Jan. 1st., 1970 to Aug. 31st.,1978. The clincal and statistical results were obtained in this stydy as following: 1. Of the total 40406 patients visiting the emergency room, the patients under 15years of age occupied 22.3%, with the sex ratio male to female,3:2. 2. The yearly distribution of patients showed little significant change until 1975 because of dconomic stagnation. There after the incidence began to increase and a mareakly sudden increase from 1977 due to medical insurance and medical protection. The monthly distribution revealed a sightly higher incidence in Summer seasin(June. July and August). 3. Preschool childres between one year anad six years of age occupied 42% of all pediatric patients. The most popular rime 27.0% of all pediatric patients were seen. 4. The most common disease was accident (24.2%), the second common was respiratory disease (16.3%), which was followde by vernous disease (13.4%), gastroinestinal disease (8.8%), infectious disease (6.3%), poisonings (5.4%), neonatal disease(4.4%), and surgical disease (4.3%) and the like in order of frequency. 5. The admission rate through the emrgency room was 43.2% of total pediatric emergency patieats.