Abstract: Objective To analyse the CT manifestations of ovarian fibromas and fibrothecomas, and to improve the accuracy rate of the diagnosis. Methods The clinical and CT characteristics of the 12 cases with pathologically confirmed ovarian fibroma or fibrothecoma were reviewed. Results (1)Of the 12 cases, 5 were fibromas and 7 were fibrothecomas. (2)All the cases were unilateral, 5 were in the right and 7 were in the left. (3)On CT imaging, fibromas were solid and with shallow leaflet in big tumors. Fibrothecomas were solid or cystic-solid; the cystic part of every tumor was single, and the cystic walls were commonly uniform thickness and were extension of the solid part. All the tumors had clear borders; and had not obvious effect in contrast enhancement. Conclusion It is affirmative characteristics of ovarian fibromas and fibrothecomas on CT imaging.