Wheezing is one of the more common clinical manifestations in the neonatal period, which is caused by turbulence of airflow through narrow segments of the airway. It is easy to diagnose congenital laryngeal chondromalacia based on clinical manifestations alone, neglecting to look for other objective bases of organic pathology, resulting in missed diagnosis or misdiagnosis. The most common cause of congenital laryngeal wheezing is reported to be congenital laryngeal cartilage softening, accounting for 60-70% of cases, followed by vocal cord paralysis and subglottic stenosis. Chondromalacia laryngealis: 1. is the most common cause of laryngeal wheezing in newborns and infants, with obvious symptoms appearing at about 2 weeks and most symptoms disappearing by 1.5 to 2 years of age. about 10% of chondromalacia laryngealis requires surgical intervention 2. infants and children with severe chondromalacia laryngealis often have the following 8 symptoms: inspiratory laryngeal wheezing, superior sternal fossa depression, inferior sternal fossa depression, feeding difficulties, breathing difficulties, spitting up, Developmental delay and cyanosis, pale face. 3.Classification:It is divided into three kinds: aryepiglottic crease collapsed into the entrance of the larynx, aryepiglottic crease too short, and posterior displacement of the epiglottis.