Different　from　the　traditional　stents,　a　novel　stent　with　triangular　wire　cross-section　is　proposed,　and　numerical　simulation　is　performed　to　compare　the　hemodynamic　effect　of　the　novel　stent　with　that　of　traditional　ones.　Three　kinds　of　stents　with　circular,　rectangular,　and　triangular　wire　cross-sections　were　designed　to　treat　saccular　aneurysm,　which　were　named　the　C-stent　model,　the　R-stent　model,　and　the　T-stent　model,　respectively.　An　unstented　aneurysm　model　(named　the　Unstented　model),　as　a　control,　was　also　designed.　Fluid-structure　interaction　in　these　four　models　was　simulated.　The　results　demonstrate　that　the　resistance　of　the　novel　T-stent　model　is　lower　than　that　of　the　R-stent　model,　but　higher　than　that　of　the　C-stent　model.　Compared　with　the　C-stent　model,　the　T-stent　model　exhibits　greater　velocity　decrease　and　longer　turnover　time.　Meanwhile,　the　pressure　increase　of　the　T-stent　model　is　lower　than　the　R-stent　model,　and　the　magnitude　and　the　fluctuation　of　wall　shear　stress　is　optimized　in　the　T-stent　model.　The　novel　stent　with　a　bare　triangular　wire　cross-section　has　some　comparative　advantages.　These　results　may　provide　some　theoretical　guidance　for　the　structural　design　of　an　endovascular　stent　for　the　interventional　treatment　of　aneurysm.