Intussusception is the most common emergent disease of acute abdomen in infancy and early childhood whichrequires prompt diagnosis and treatment under the cooperation of the surgeon. pediatrician, and radiologist. Therecent trand of treatment for intussuception is barium reduction. But in cases of failure of barium reduction,operative reduction is the second procedure. Authors analysed 85 cases of intussusception which were taken bariumreduction in the department of radiology of Hanyang Unviersity Hospital for the past 4 years. The results were asfollowings; 1. The mean age of the patient was 8.8 months, and 87.1% of the patients were under the age of 1year-old. 2. Males were slightly more affected than females as a ratio of 1.3;1. 3. The cardinal symptoms andsigns were vomiting (94.1%), bloody-mucoid stool (92.9%), irritability(88.2%), palpable mass (75.3%), abdominaldistention(42.4%), dehydration (27.1%) in order of frequency. 4. The most common presenting point at barium enemawas in the transverse colon with the incidence of 56.5%. 5. The over all reduction rate of barium enema was 62.4%,and this rate was increased in the following cases; 1) The infants between the age of 7-9 months. 2) The patientsof early visiting especially in cases of under 6 hour of duration of symptoms. 3) The patients without evidentsmall bowel obstruction in the flat abdomen. 4) The patients with intestinal gas shadows in the right abdomen. 6.Two cases were recurred after barium reduction,and two cases after operative reduction.