The invention belongs to the medical appliance field, particularly relates to an artificial endovascular stent and method for preparing thereof. The invention adopts tunica vasculosa made from varicosity Teflon and nickel-titanium alloy stent, and makes domestically produced artificial endovascular stents for the intracavity therapy of aneurism. The invention improves the performance of existing artificial endovascular stents, presents a small caliber, fits the windings of arteries, and improves the flexibility and biocompatibility. The stent is nontoxic, nonirritating for tissues, non-pyretogenic, non-sensitizing, non-teratogenic, and does not induce thrombosis in arteriae, thus reduces the direct damages to aorta walls.