Abstract: Objective To investigate the clinical diagnosis and treatment of blunt abdominal trauma(BAT).Methods The clinical data of 64 patients with BAT were retrospectively analyzed.Results 49 patients treated by surgery were cured and 12 cases treated by non-surgery were cured.3 patients died,two of them died for multi-organ dysfunction and one of them died for brain trauma.Conclusion Because the BAT is severe and complicate,so it shoald be diagnosed and treated as soon so possible.