The diagnosis and differential diagnostic value of ultrasound on intra-pulmonary lesions is gradually being paid attention to clinically, and the replacement of pediatric chest X-ray with ultrasound in lung is a safe and feasible solution. In recent years, the research on lung ultrasound scoring in pediatrics is being carried out gradually. This paper introduces the new tool and summarizes its application and progress in pediatric lung disease, aiming to promote the progress of ultrasound in this field of pediatrics.