Endovascular　stents　with　different　stent　shapes　or　wire　cross-section　shapes　have　different　effects　on　the　hemodynamics　of　basilar　aneurysm.　To　quantitatively　understand　the　difference,　computational　fluid　dynamics　simulation　were　performed　to　investigate　the　hemodynamics　of　basilar　sinuous　aneurysms　treated　with　four　types　of　virtual　mesh　stents　with　different　porosities　and　different　wire　cross-section　shapes.　Results　show　that　the　triangle　stent　with　a　lower　porosity　has　more　superiority　than　other　stents　in　weakening　the　impact　of　blood　to　the　aneurismal　wall　and　decreasing　the　local　high　pressure　and　wall　shear　stress.　The　flow　resistance　of　the　new　stent　with　a　triangle　cross-section　is　different　when　blood　flows　in　and　out　of　the　aneurismal　sac,　which　brings　about　different　hemodynamics　in　aneurusms　after　the　stent　intervention.　The　stent　with　a　triangle　section　is　more　suitable　for　sinuous　basilar　aneurysms　comparatively.　Those　results　can　provide　some　theoretically　guide　the　structural　design　of　stents.