Objective: It was aimed at investigating the role of lung ultrasonography in assessment of pneumonia as compared to chest x-ray in pediateric age group. Purpose: to evaluate the ultrasound efficiency in the assessment of pneumonia in pediatric age group as compared to chest x-ray. Methodology: This study was carried out at the general pediatric wards and PICUs of El-Demrdash hospital, Ain Shams University.40 patients were clinically diagnosed with pneumonia. For every child included in the study, a chest x-ray and a chest US were performed. Result: the detection rate of consolidative patches was higher in ultrasound compared to the x-ray technique. Conclusion: Lung ultrasound is safe and accurate for the diagnosis suspected cases of community-acquired pneumonia and it is more sensitive than chest X-ray and allows a radiation-free technique for detection of consolidations in children, thus reducing radiation exposure in this population.