96 cases of foreign body aspiration in childage group were analized in clinical and radiological aspect and following brief results were obtained. 1. Sex and age incidence; Most frequent age incidence was 1 year old to 3year old, and those number of patients were 51(53.1%). 2. Varieties of foreign body; Peanut was the most freuquent aspirated foreign body and was 35 cases (36.4%). The next was plasticmaterial (18.9%). However various materialscould be aspirated as foreign body. 3. Location of foreign body; Right bronchus was most common site of lodgementof foreign body and 47 cases (48.9%) in number. Left bronchus foreign body lodgement was 25 cases (26%) andmultiple foreign body lodgement was 9 cases (9.8%). 4. Radiological findings; Most common X-ray findings wereobstructive emphysema(51.1%), and direct visualization of foreign body was 17 cases (17.7%), author concluded that inspiratory and expiratory film was important in evaluation of obstructive emphysema.