Background: Blunt chest trauma is a significant problem affecting mainly young males between 20-40 years and it is usually caused by motor vehicle accidents. It is common and contributes significantly to morbidity and mortality of trauma patients. It has an overall fatality rate of 15-25%. Objective: To evaluate the role of multi-detector computed tomography in assessment of patients with blunt chest trauma. Patients and Methods: This study involved 50 patients; 40 males (70%) and 10 females (30%). Their ages range was 2-75 years (mean age= 51.4 years). They were exposed to blunt chest trauma and referred to the Emergency Radiology Department in Nasr City Hospital and Al-Azhar University Hospitals for multi detector computed tomography (MDCT) of the chest over a period of 6 months starting from November 2019 to April 2020. Results: Multi-planner and 3D reconstruction images were sensitive in the evaluation of different skeletal injuries especially dorsal spine, scapular and sternal fractures. Its high resolution provides more sensitivity in the evaluation of lung contusion that helped in predicting the need for mechanical ventilation. MDCT was more accurate and sensitive in the diagnosis and characterization of different types of pleural and mediastinal injuries. Multidetector CT generated virtual bronchoscopy represented one of the most recent developments in three-dimensional (3D) visualization technique which allowed a 3D evaluation of the airways down to the sixth- to seventh-generation. MDCT not only detected small diaphragmatic discontinuities, but also identified the herniated fat or viscera. Conclusion: The information provided by MDCT may lead to critical changes in patients' management, so that clinicians, radiologists, and radiology residents should be familiar with the different aspects of MDCT evaluation of this non-negligible group of patients.