Objective To analyze the CT and MRI findings of bilateral frontoparietal subdural hemorrhage. Methods The CT and MRI data of 48 patients with bilateral frontoparietal subdural hemorrhage who were admitted in our hospital between February 2015 and February 2016 were collected. The characteristics of CT and MRI images were analyzed. Results In 48 patients with bilateral frontoparietal subdural hemorrhage, 20 cases underwent CT scan, including 7 cases in acute phase, 11 cases in subacute phase and 2 cases in chronic phase, 28 cases underwent MRI scan, including 11 cases in acute phase, 10 cases in subacute phase and 7 cases in chronic phase. CT plain scan of patients with bilateral frontoparietal subdural hemorrhage showed arc equal and low density shadow below bilateral frontoparietal skull inner plate, clear hematoma, with bone artifacts and no abnormality of brain parenchyma. MRI axial scan T1 showed high density shadow below bilateral frontoparietal skull inner plate, and the adjacent brain parenchyma was slightly pushed; There was no abnormal signal in brain parenchyma, and gray matter interface was clear. Some sulus broadened and deepened while gyri became shallow. The midline structures were without deviation. MRI axial scan T2 showed that there was high density shadow below bilateral frontoparietal skull inner plate, and there were no abnormal basicranial vascular shape and lost shape. The signal of skull bone marrow was normal. MRI axial scan FLAIR showed bilateral high signal shadow below bilateral frontoparietal skull inner plate. EDWI showed no diffusion limitation. Conclusion CT scan can show equal and low density shadow below bilateral frontoparietal skull inner plate and unclear hematoma; MRI axial scan T1 shows arc high signal shadow, clear hematoma, midline structure without shift. Axial T2 shows arc high signal shadow, and axial FLAIR shows arc high signal shadow. EDWI shows no diffusion limitation. The CT and MRI findings of bilateral frontoparietal subdural hemorrhage are clear. In clinic, examination should be based on MRI, and CT can be used as a complementary examination.