Objective To investigate the MRI and CT diagnosis of pulmonary tuberculoma. Methods The CT and MRI imaging data of 21 cases of pulmonary tuberculoma which confirmed by pathology were collected.MRI imaging data included plain scan, DWI and dynamic contrast-enhanced scan, CT imaging data included plain scan and enhanced scan. Then the imaging features of both methods were analyzed. Results 21 cases of pulmonary tuberculoma performed hypointensity on T1WI, 16 cases performed hypointensity in the center and hyperintensity peripheral on T2WI, and 5 cases performed hyperintensity on T2WI. All cases performed hyperintensity or slightly hyperintensity on DWI image, with the average ADC value of (1.60 ± 0.18) s/mm2. A total of 17 lesions showed no enhancement or slight enhancement in the center and complete or incomplete ringlike enhancement peripheral at arterial phase of the contrast-enhanced scans. And 6 cases showed slow inflow type of the time-intensity curve, 4 were slow outflow type. All lesions performed low density on CT plain scan, and had slightly enhancement after enhanced, in which 10 cases performed complete or incomplete ringlike enhancement. And 6 cases showed slowly rise type of the time-density curve, 4 showed rapid rise at early stage and slow descending. Conclusion MRI and CT had great value in the diagnosis of pulmonary tuberculoma, MRI had advantages in displaying the ringlike enhancement of the lesion and CT displayed calcification better.