Background: MRI is an accurate, noninvasive imaging modality for evaluation of knee injuries, and determines the patient management, saving them from unnecessary arthroscopy, Aim and objectives: to emphasize the role of Magnetic Resonance imaging in the assessment of traumatic lesions of the knee joint. Subjects and methods: a cross sectional study including thirty patients with history of knee trauma, referred to perform knee MRI. The duration of the study ranged from 6-12 months (Dec. 2018 to Dec. 2019). Results: The current study showed regarding MRI findings of the studied group, that joint effusion was the commonest finding in between our study group (80%). This was followed by ACL injury (63.3%) and PHMM injury (56.7%). LCL was the least structure to be injured (3.3%). Conclusion: MRI is an extremely useful imaging modality for evaluation of knee injuries. It gives valuable information to the referring orthopaedician for planning the line of treatment in terms of conservative management or surgery. MRI is not only a diagnostic tool but also helps in correlation of injury with biomechanical forces involved in trauma and follow up post-operative patients.