96 cases of foreign body aspiration in childage group were analized in clinical and raidological aspect and following brief results were obtained. 1/0 Sex and age incidence ; Most frequent age incidence was 1 year old to 3 year old, and those number of patients were 51 (53.1%). 2) Varieties of foreign body ; Peanut was the most frequent aspirated foreign body and was 35 cases(36.4%). The next was plastic material (18.9%), However various materials could be aspirated as foreign body. 3) Location of foreign body ; Right bronchus was most common site of lodgement of foreign body and 47 cases (48.9%) in number. Left bronchus foreign body lodgement was 25 cases (26%) and multiple foreign body lodgement was 9 cases(9.85%). 4) Radiological findings ; most common X-ray findings were obstructive 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.