Objective To study the application value of magnetic resonance angiography (MRA) and CT angiography (CTA) in the diagnosis of abdominal visceral arteryaneurysms (VAAs). Methods The clinical data of 104 patients suspected as VAAs who underwent MRA and CTA in our hospital from June 2013 to June 2018 were retrospectively analyzed. Thedetection rates of pathological features of different sizes of lesions, tumor wall calcification, intratumoral thrombosis and tumor pedicle were compared between the two methods. The results of CTA test were taken as gold standards, and the diagnostic value of MRA was analyzed. Results Among 104 cases of patients, 79 cases (75.96%) were diagnosed with VAAs, and a total of 95 VAAs lesions were detected, and 73 cases (87 lesions) were diagnosed by MRA, and the sensitivity, specificityand accuracy rate were 92.41%, 92.00% and 92.31%. Compared with CTA, its Kappa value was 0.800 and it has good consistency, and there were no significant differences between MRA and CTA in the diagnosis of different types of VAAs (P>0.05). The average diameter of VAAs lesions by MRA was larger than that of CTA, and the detection rate of tumor wallcalcification was lower than that of CTA (P<0.05). Conclusion MRA is less effective in displaying small lesionsand tumor wallcalcification, but its diagnostic accuracy is in good consistency with CTA. Therefore, the two methods can be used as effective methods for visceral artery aneurysms.