Objective To investigate the ultrasound and CT findings of tubal ovarian abscess and to explore the value of imaging technique in the diagnosis of tubal abscess. Methods The ultrasound and CT diagnostic data of 37 patients with tubal ovarian abscess confirmed by operation and pathology were retrospectively analyzed. The diagnostic accuracies were compared and the imaging findings were analyzed. Results The preoperative CT diagnostic accurate rate was 94.58% which was significantly higher than 78.38% of ultrasound and the difference was statistically significant (P<0.05). The ultrasound showed that the size of masses was 3-10cm, located posterior to the uterus, without clear boundaries, with complete capsule. There were 35 cases of cystic masses, without internal echo, with many punctiform strong echo showing diffuse distribution. 2 cases were solid masses, with strong echo inside, showing a honeycomb shaped ultrasonogram. There were 30 cases of messes detected with signal of blood flow. CT imaging findings showed that 34 cases were cystic or cystic solid and the lesion diameters were 8cm~15cm, without clear boundaries, with rough edge. 27 cases were vesicle wall thickening and there was separation in most of vesicles. Most of the vesicle walls and cyst solid venous phase were strengthened. When the scan was delayed, the enhancement persisted and there was no enhancement in cystic areas. 8 cases were fallopian tube expansion, with visible cystic shadow which was tubular or gourd shaped distribution. The vesicle walls of 6 cases were thin and when enhancement scan, there were enhancement characteristics persistenting. 3 cases were solid. Conclusion Ultrasound is the first choice for the diagnosis of tubal ovarian abscess and it can be combined with CT scan to improve the diagnostic accuracy.