The authors observed 190 cases of intussusception who were admitted to the Department of Pediatrics of Hanyang University Hospital from May, 1972 to August, 1977. And we had clinical analysis of these patients with a review of literatures. The results of clinical analysis of these patients were summarized as following. 1. In age distribution, 86.3% of the these patients were summarized as following. 2. Sex ratio of male to female was about 2:1 3. In seasonal distribuution, there were prevalent in Spring. 4. 75.9% of them were over 50 percentiles of development standard of Korean nomal infants and children by body weight. 5. The etiologic causes were found only in 1.7% of them and the other were idiopathic. 6. The most common anatomical type was ileo-colic type (77.4%) 7. The cardinal symptoms and signs were vomiting (82.1%), abdominal pain(81.6%), mucous bloody stool(67.9%), and palpable abdominal mass(62.1%), in order. 8. The reduction rate with barium enema was 78.2% and was high in the following cases ; (1) early visiting to the hospital, and (2) ileo-colic and colo-colic in type. 9. The rate of complication after surgery was 2.1% of all observed cases and mortality rate was 1.05%. The recurrence after first reduction occurred in 8.95% of all.