Splenic artery aneurysms (SAAs) are the most common visceral aneurysms. Endovascular treatment of SAAs is increasingly used. Appropriate preoperative imaging of aneurysms is crucial to treatment planning. The case of a patient with accidentally detected SAA on angio-CT examination was the basis for implementation of 3D printing to prepare an artery model. The 3D model made it easier to qualify for endovascular treatment of the SAA and helped to visualize its morphology. An excellent treatment effect was achieved. 3D printing provides an opportunity for better visualization of SAA anatomy, which has a direct impact on the choice of minimally invasive treatment method.