During　the　life-cycle　of　a　building,　the　structure　might　be　subjected　to　multiple　hazards　such　as　fire,　earthquake　and　impact.　Compared　with　the　traditional　structure　design　methods　based　on　a　single　type　of　disaster　load,　the　structure　subjected　to　multiple　and　coupled　disaster　loads　would　be　more　dangerous　and　worth　to　be　investigated.　In　this　paper,　the　post-fire　seismic　behavior　of　concrete-filled　steel　tubular　(CFST)　column　to　steel　beam　joints　with　blind-bolted　connections　subjected　to　coupled　fire　and　cyclic　loads　were　investigated.　A　total　of　ten　post-fire　hysteresis　joint　tests　were　designed　and　conducted,　and　the　testing　parameters　included　heating　time,　post-fire　column　load　ratio　and　thickness　of　fire　protection　layer.　The　test　results　indicated　that　the　joint　failure　mode　changed　from　column　failure　to　connection　failure　when　the　post-fire　column　load　ratio　ranged　from　0.3　to　0.6.　Generally,　the　blind　bolts　in　the　panel　zone　of　this　joint　specimen　showed　acceptable　working　performance　in　fire,　but　gap　between　the　stee　tube　and　beam　end　plate　might　be　formed　during　the　post-fire　cyclic　loading　process.　Finite　element　analysis　(FEA)　models　were　established　to　simulate　and　discuss　the　post-fire　seismic　performance　of　this　type　of　blind-bolted　CFST　joints　under　the　coupled　fire　and　loading　process.　Finally,　a　simplified　post-fire　hysteretic　relationship　model　for　this　type　of　joint　was　proposed.　©　2023　Elsevier　Ltd