Results of quantitative culture of pathogenic bacteria in nasopharyngeal secretions of 154 cases of hospitalized children with bacterial pneumonia demonstrated that the highest culture rates were Haemophilus influenzae (39.0%) and streptococcus pneumoniae (20.8%). Recovery rate of H. influenzae and Str. pneumoniae among children of various age groups demonstrated that the smaller the age, the higher the recovery rate. The recovery rates of these two bacteria were highest in December and in November, respectively.