Neuroblastoma is one of common malignacy in children and originates from the primitive sympathetic neuroblasts of the embryonic neural crest. Because of the patient have disseminated disease at the time of diagnosis the prognosis will not be good. Nowadays we will have more accurate information for dianosing and staging by applica-tions of modern imaging modalities. the authors analyzed radiological findings of 21 cases of pathologically proven neuroblasto-ma at Inje University pusan paik Hospital. the results were as follows: 1. The mean age was 4 year-old and male to female ration was 11:10 2. The most common clinical finding was palpable abdominal mass(10 cases) and the most common originating site was abdomen(17 cases) the diagnosis could be done in 9 cases by clinical impression, 3. Neuroblastoma was in 19 cases and ganglioneuroblastoma was in 2 cases pathologically. stage I was and the others (20 cases) were more than stage III. 4. Among 19 cases plain film and IVP showed renal abnormality in 16 cases calcification in 6 cases and bone metastases in 10 cases 5, Among 19 cases plain film and IVP showed renal abnormality in 16 cases calcification in 6 cases and bone metastases in 10 cases 5. Among 13 cases ultrasonography showed irregularly marginated heterogenous mass in 12 cases calcification in 8 cases renal abnormality in 9 cases and lymph node metastases in 10 cases 6. Among 12 cases CT finding showed irregular margined soft tissue mass in 11 cases calcification in 9 cases renal abnormality in 9 cases lymph node metastases in 11 cases and bone metastases in 4 cases 7. Among 15 cases bone scintigraphy showed bone metastases in 11 cases and bone metastases in 4 cases. 7. Among 15 cases bone scintigraphy showed bone metastases in 11 cases renal abnormality in 9 cases and primary site uptake in 9 cases