Objective To study the application value of MRI plain scan and enhanced scan in cervical lesions. Methods Forty-five patients with cervical lesions admitted in our hospital between June 2013 and March 2015 were selected as the study subjects. CT and MRI plain scan and enhanced scan were performed before operation, and the MRI findings were observed. With the surgical and pathological staging as the standard, the accuracy rates of CT and MRI in the diagnosis of signs of cervical cancer were compared, and the coincidence rates of MRI plain scan and enhanced scan in the diagnosis of different cervical cancer stages were analyzed. Results MRI plain scan and enhanced scan showed slightly increased volume of uterus, and there were irregular soft tissue masses in uterus, showing equal T1 and equal short T2 signal changes. Fat suppression showed equal signal, and DWI showed high signal. The boundaries were unclear, and the uterus and vagina were invaded. The degree of enhancement of enhanced scan was lower than that of normal uterus, showing slightly lower signal changes. Pelvic and uterine cavity showed long T1 and long T2 signal.With the pathological results as the standard, the coincidence rate of MRI in the diagnosis of cervical cancerⅠb1 stage or lower stage (84.6%) was significantly higher than that of plain scan (50.0%) (P<0.05) while there was no significant difference in the coincidence rates in the diagnosis of Ⅰb-Ⅱa, Ⅰb stage and higher stage (P>0.05). The coincidence rate of MRI enhanced scan in the diagnosis of total stage (84.4%) was higher than that of plain scan (68.9%) (P<0.05). Conclusion The accuracy of MRI plain scan and enhanced scan in the diagnosis of cervical cancer stage is higher than that of CT, and the accuracy is significantly improved after enhanced scan.