We made a retrospective study for the result of 20 cases of childrens ankle fractures which had been treated at Yonsei University College of Medicine from Jan. 1989 to June 1993. The age ranged from 6 to 15 years and the mean was 11.8 years old. Most of them had got traffic accident (14 cases, 70%). According to the Dias and Tachdj inns classification, pronation-eversion-external rotation injuries were 9 cases(45%) and supination and inversion inju.ies were 7 cases(35%). According to the Salter-Harris classification, type II were 13 cases(65%) and type III were 6 cases(30%). Sixteen cases were treated by gentle closed reduction and plaster cast. Four cases were treated by open reduction and internal fixation. Among the cases which had underwent closed reduction, 2 cases of angular deformity, one case of angular deformity with limb length discrepancy and one case of incongruity of joint surface were found. One case was treated with Ilizarov external fixation for the correction of angular deformity.