Objective To investigate the clinical value of ultrasound combined with CT in ectopic pregnancy. Methods The clinical data of 110 patients with ectopic pregnancy who were admitted to our hospital from January 2016 to January 2017 in our hospital were retrospectively analyzed. 54 patients undergoing single abdominal ultrasonography were enrolled in the control group, and the other 56 patients underwent combined abdominal ultrasound and CT examination were included into the observation group. All patients were diagnosed as ectopic pregnancy through ultrasound and CT, and were treated with surgical removal, and the resected tissue was sent to the laboratory. The diagnostic accuracy of two groups was compared, and the CT and ultrasonic features of ectopic pregnancy were analyzed and observed. Results In the control group, 77.78% of ectopic pregnancy was diagnosed by laboratory examination, 92.85% of ectopic pregnancy was diagnosed by laboratory examination in the observation group, and the correct rate of ectopic pregnancy in the observation group was higher than that in the control group (P<0.05). Ectopic pregnancy B ultrasound showed 53 cases of uterine enlargement, 51 cases of uterine image edge is not clear average, 48 cases of central area without obvious echo dark area. CT showed oval high density foci, rupture of fetal sac in 51 cases, irregular deformation of fetal sac in 39 cases, high density hematocele around fetal sac in 10 cases, and tubal hematocele in 4 casesIn the control group, 42 cases were diagnosed as ectopic pregnancy, accounting for 77.78%. while 56 cases were diagnosed as ectopic pregnancy in the observation group, accounting for 92.85%. The correct rate of ectopic pregnancy in the observation group was higher than that of the control group (P<0.05). The ultrasound imaging of ectopic pregnancy showed that 53 cases of uterus enlarged and the average thickness of the membrane was (12.58±1.47) mm. In 51 cases, the edges of the uterus were not clear, the average wall thickness (6.59±0.47) mm, of which 48 cases, the central echo dark area was not obvious. Ovarian high density lesions appeared on the right front of the uterus in 52 cases, with a mean CT value of (56.59±1.48) HU. There were 51 cases of ruptured sac and 39 cases of ruptured sac and 10 cases of high density hemorrhage around fetal sac. There were 8 cases with regular ring shape, 6 cases with half-ring shape, 9 cases with intracapsular nodules, 7 cases with intracapsular high-density blood vessels and 19 cases with intracapsular high-density plaque. There were 17 cases of irregular thickening of the wall of the capsule, 13 cases of abnormal supply of blood vessels around the fetal capsule, 7 cases of pelvic hemorrhage and 4 cases of oviduct accumulation. Conclusion Obstetricians can judge the specific situation of ectopic pregnancy according to CT signs and ultrasonic image characteristics, so as to reduce the rate of misdiagnosis and missed diagnosis of ectopic pregnancy and improve the accuracy of diagnosis of ectopic pregnancy.According to the characteristics of CT imaging combined with ultrasound images of the doctor can determine the specific conditions of ectopic pregnancy, thereby reducing the misdiagnosis and misdiagnosis rate of ectopic pregnancy and improve the diagnostic accuracy of ectopic pregnancy.