Splenic artery aneurysm presented with rupture is an unusual and potentially deadly reason of intraperitoneal hemorrhage. There are a lot of pathogenetic hypothesis; timing according to disease severity and surgical choices aren’t definitely codified authors present one patient with hemoperitoneum for ruptured splenic artery aneurysm affected by chronic lymphatic leukaemia too and review international literature; they underline pathogenesis, symptoms, preoperative investigations and therapy. Degeneration of the media, atherosclerotic changes and high blood flow due to pregnancy and portal hypertension conld be the main pathogenetic factors. Ultrasonography is the first investigation we have to practice if we suspect hemoperitoneum. We can practice computed tomography and angiography too if cardiovascular condition are good. Rupture showing acute abdominal pain and cardiovascular collapse suggest strongly urgent operation. The choice of operation is determined by location of the aneurysm. When located in the distal third of the splenic artery, the aneurysm is resected with spleen; alternatively, when it is located in prossimal third we can performe conservative operation.