Objective To study the value of MSCT in the diagnosis of neonatal type (Ⅲ) congenital esophageal atresia.Methods MSCT data of 25 cases with neonatal type (Ⅲ) congenital esophageal atresia confirmed by surgery and pathology were analyzed retrospectively.The full preparation before examination and the image post-processing function were checked,and MSCT data were compared with the findings of surgery.Results By full preparation and application of M PR,SSD technology after scanning,the esophageal proximal blind end,and the distance between the two esophageal blind ends were clearly displayed,furthermore,the opening position,morphology and diameter of the distal tracheoesophageal fistula were also showed,and bronchial tree morphology and inflammation in the lung can be visible.Conclusion MSCT full preparation and application of image post processing function are potential to the clinical diagnosis of congenital esophageal atresia and tracheoesophageal fistula.