Result: Features of family and environment in children with atypical pneumonia due to bacteria include: Patients living in the country side and mountainous areas account for 51.17%; whose fathers have attende high school account for 71.16%; whose mothers have attended high school account for 71.63%; whose fathers are farmers and freelancers account for 63.72%; whose mothers are farmers and freelancers account for 61.86%; children living in crowded place have percentage of 64.19%; those who exposed to dust account for 20.47%; those who exposed to cigarette smoke account for 36.28%; those who use air conditioner account for 46.98%; those who use water from wells account for 43.26%.