Objective To compare and analyze the clinical value of CT and MRI in diagnosing lymph node metastasis of cervical cancer.Methods 284 patients with cervical cancer who completed preoperative CT or MRI examination and intraoperative resection of pelvic lymph node±paraaortic lymph node were included. The data of CT and MRI examination, clinical stage and surgical pathological stage were compared and analyzed to compare the clinical value of CT and MRI in evaluating lymph node metastasis. Results The lymph node metastasis rate was 11.27%. Preoperative CT and MRI showed lymph node enlargement in 100 cases, of which 18 cases had lymph node metastasis. In CT group, 20 cases had enlarged lymph nodes, only 1 case had lymph node metastasis; In MRI group, 80 patients had enlarged lymph nodes, 17 of which had lymph node metastasis. Conclusion In CT and MRI examination, the accuracy of judging cervical cancer with lymph node metastasis solely by lymph node size is low. If the short diameter of 5mm is used as the criterion, MRI has relatively good diagnostic value