Solitay iliac aneurysms are a rare clinical condition characterized by insidious onset.Once they rupture,treatment becomes difficult,and the mortality rate is extremely high.Therefore,it is extremely important to detect the disease,classify it appropriately and select appropriate treatment options.In recent years,endovascular treatment has gradually replaced traditional laparotomy as the first-line therapeutic approach.Some scholars have proposed clinical classification of isolated iliac aneurysms based on anatomical morphology and imaging studies to better select appropriate endovascular treatment strategies.This review aims to summarize the treatment advancements for solitary iliac aneurysms and the classifications based on the published literature.