Plenty　of　well-established　medical　research　works　have　shown　that　many　vascular　diseases　such　as　stenosis　and　atherosclerosis　are　prone　to　appear　in　curved　arteries.　In　this　paper,　we　investigated　the　influence　of　wall　compliance　on　flow　pattern　in　curved　arteries　exposed　to　dynamic　physiological　environments　in　order　to　understand　the　hemodynamic　mechanism　and　provide　a　basis　for　clinical　research　in　related　areas.　Representative　curved　arteries　with　elastic　and　rigid　walls　are　constructed　by　computers.　The　fluid-structure　interaction　(FSI)　effect　is　considered　in　our　calculations.　Physiological　velocity　profile　is　assigned　as　the　inlet　boundary　condition.　No-slip　boundary　condition　is　applied　at　the　blood-wall　interface.　Our　results　show　that　the　maximum　axial　velocity　in　the　rigid　wall　model　is　larger　than　that　in　the　elastic　wall　model.　Wall　compliance　also　has　a　remarkable　effect　on　back　flow　patterns.　Significant　differences　in　pressure　distribution　are　found　between　the　elastic　and　rigid　wall　models.　Blood　strain　rate　distribution　patterns　in　the　two　models　were　also　compared.　It　was　interesting　to　discover　that　in　the　straight　part　of　the　artery,　the　flexible　wall　made　the　counter-rotating　vortices　induced　by　the　curvature　gradually　disappear　along　a　downstream　direction.　However,　for　the　flow　feature　in　the　rigid　wall　model,　strong　vortices　existed　throughout　the　entire　straight　part　of　the　artery.　It　revealed　that　the　increment　of　wall　rigidity　results　in　a　reduction　in　wall　movement　capacity,　thus　affecting　the　physiological　function　of　the　arterial　wall,　making　it　incapable　of　effectively　regulating　the　flow　pattern　inside　the　artery.　The　current　work　indicates　that　the　influence　of　wall　compliance　on　flow　pattern　in　curved　artery　is　significant.