The injuries of ankle in children occur mostly at the bony structure rather than ligamentous one, and some injuries of the growth plate may result in the arrest of entire growth an these may result to leg length discrepancy or deformity. Accurate treatment under the knowledge of injury mechanism is very important. We have reviewed 30 cases of childrens ankle fracture treated our clinics from Jan. 1987 to Dec. 1990. The results are as follows; 1. Traffic accident was most common cause of injury (50.0%). 2. According to Dias & Tachdjian classification, Supination-Invertion type was most common (11 cases). 3. The treatments performed were closed reduction & cast immobilization for 11 cases (36.7%), closed reduction & percutaneous pinning for 3 cases (10.0%), and open reduction & internal fixation for 16 cases(53.3%). 4. Among open reduction & internal fixation group, only 1 case(pronation-eversion-external rotation type) show angular deformaity. 5. For the prevention of complications, accurate reduction and adequate fixation was desired.