This　paper　studied　the　progressive　collapse　resistance　of　10　beam-column　joints　with　post-high-temperature　through　static　tests.　The　size　of　the　ten　specimens　is　the　same,　and　the　connection　form　is　bolt-welded　connection.　Among　them,　one　specimen　was　at　room　temperature,　and　the　other　nine　specimens　were　treated　at　400　?,　600　?,　and　800　?　and　held　at　the　temperature　for　30,　60,　and　90　min,　respectively.　The　load　-displacement　curve,　deflection　curves,　and　strain　development　of　the　critical　section　of　the　specimen　were　studied,　and　the　axial　force,　bending　moment,　bending　resistance,　and　catenary　mechanism　of　the　specimen　were　calculated　according　to　the　test　results.　Before　and　after　high　temperatures,　the　failure　of　specimens　is　beam-end　damage.　Temperature　only　affects　the　initial　position　of　failure　of　beam-column　joints.　The　duration　time　has　no　noticeable　effect　on　the　properties　of　the　steel.　Based　on　the　test　results,　it　is　found　that　at　the　same　duration　time　and　different　high　temperatures,　the　higher　the　temperature,　the　smaller　the　maximum　vertical　load　and　joint　rotation　angle　at　failure,　and　their　axial　force　and　bending　moment　are　also　weaker.　However,　there　is　no　dif-ference　between　the　plastic　limit　rotation　angles　of　the　specimens.　At　the　same　temperature　and　different　duration,　the　load-displacement　curves　of　the　specimens　are　very　similar.　It　can　be　seen　that　at　the　same　tem-perature,　the　duration　time　has　little　effect　on　the　mechanical　properties　of　the　specimen.　At　the　same　time,　although　the　mechanical　properties　of　the　specimens　were　weakened　after　high　temperatures,　they　still　main-tained　an　excellent　ability　to　resist　progressive　collapse.　Even　the　beam　angle　of　the　member　with　the　smallest　failure　angle　was　0.15　rad,　more　significant　than　0.06　rad.　The　finite　element　model　established　by　ABAQUS　is　mutually　verified　with　the　test　results　to　prove　the　accuracy　and　effectiveness　of　the　finite　element　model.　Based　on　this　model,　the　expanded　parametric　analysis　is　carried　out　to　analyze　the　influence　of　hole　spacing　and　hole　diameter　on　the　progressive　collapse　resistance　of　the　specimen　after　high　temperature.