Objective To explore the diagnosis and surgical treatment of duodenal trauma.Methods A retrospective study was accomplished on the clinical data of 52 patients with duodenal trauma.Results Of 52 patients with duodenal trauma,11 cases were simply anterior wall trauma,41 cases were anterior and posterior wall trauma and 6 cases were complicated with other organs traumatic.All patients were treated by surgery,and 45 cases were cured and 7 cases died.Conclusions Duodenal trauma often betides when patients have suffered road accident or closed impact injury in abodomen.Anterior wall trauma is often complicated with contrecoup of corresponding posterior wall.The diagnosis of posterior wall trauma is easily missed and the leakage of duodenum often happens in the operation.It is critical to check the doubtful cases with careful operations research and select reasonable and appropriate operation types for the diagnosis and surgical treatment of duodenal trauma.