Fiber-reinforced　polymers　(FRP)　have　been　a　prospective　material　in　engineering.　However,　the　attenuation　of　FRP　bar-reinforced　concrete　members　in　fire　is　unclear.　This　paper　studies　the　impact　resistance　of　glass　fiber-reinforced　polymer　bar-reinforced　concrete　(GFRP-RC)　shear　walls　under　high　temperatures.　Considering　the　impacts　of　strain　rate　enhancement　and　high　temperature　softening　on　GFRP　bars　and　concrete,　a　numerical　model　with　finite　elements　in　three　dimensions　was　created.　To　verify　the　model,　three　cases　were　simulated　and　compared　with　the　test　records,　including　the　seismic　performance　of　FRP-RC　shear　walls　under　axial　compression,　the　seismic　behavior　of　reinforced　concrete　(RC)　shear　walls　under　high　temperatures,　and　RC　shear　walls＇　impact　response.　Based　on　the　calibrated　numerical　model,　the　displacement,　impact　force,　reaction　force,　failure　mode,　energy　distribution,　internal　force　and　the　residual　shear　bearing　capacity　of　GFRP-RC　shear　wall　subjected　to　impact　under　different　fire　times　were　analyzed.　The　influence　of　fire　time　on　the　failure　mechanism　of　GFRP-RC　shear　walls　was　studied.　Taking　the　mid-span　displacement　as　the　damage　index,　the　evaluation　criteria　for　the　four　damage　levels　were　determined.　The　findings　indicate　that　the　type　of　reinforcement　has　little　effect　on　the　shape　of　impact　force,　reaction　force　and　displacement　time　history　curve.　The　peak　values　of　impact　force　and　reaction　force　of　RC　walls　are　larger　than　those　of　GFRP-RC　shear　walls,　while　the　former　has　smaller　peak　displacements　and　residual　displacements.　The　damage　of　shear　walls　becomes　more　severe　as　the　fire　time　increases,　as　does　the　displacement.　Also,　the　impact　force,　reaction　force,　shear　force　and　bending　moment　decrease　gradually.　The　energy　absorbed　by　shear　walls　is　primarily　dissipated　by　concrete,　the　part　by　GFRP　bars　accounting　for　a　small　proportion.　The　post-impact　residual　bearing　capacity　of　GFRP-RC　shear　walls　is　linearly　related　to　the　mid-span　displacement　under　impact　loads,　primarily　influenced　by　high-temperature　exposure.　©　2024　Elsevier　Ltd