Infants during the first year of life are particularly prone to the development of staphylococcal pneumonia: in fact, it is the commonest bacterial cause of death due to respiratory tract infection in this age group. Pneumatoceles within the lungs and pleural complication such as pleural effusion, empyema, pyopneumothorax and pheumothorax are characteristics in this pneumonia. Retrospectively we reviewed 22 patients of staphylococcal pneumonia in children diagnosed by pleural fluid or blood culture, throat suction cytology, or culture of pus from thigh, joint fluid or ear discharge in one or combining them during the recent 5 years from January, 1985 to December, 1989 and obtained the following results: Male to famale ratio was 1:1 and peak incidence was between 1 month and 1 year of age(45.5%:10/22). Fever, coughing and dyspnea were the predominent symptoms, and duration of symptoms was 4 to 7 days in 59%. Plain chest film findings on admission day: 1) 27.3%(6/22) showed the lesion almost entirely restricted to the lung with ratio of 2:1 of right and left involvement and these were treated without complication. 2) Only one case(4.5%) showed pneumatoceles combined with pneumonic infiltration and pleural effusion. 3) Pleural lesion occured in 72.7%(16/22):22.7%(5/22) without pneumonic infiltration and 50%(11/22) with pneumonic infiltration. They were empyema, pyopneumothorax, and pleural effusion in descending order. Mortalty was 4.5%(1/22)