The　FeCrAl　foil　was　coiled　into　a　round　porous　structure　and　it　was　brazed　in　vacuum　at　1070°C　for　10min　using　the　BNi82CrSiB　brazing　foils.　Results　showed　that　there　were　no　defects　on　the　surface,　and　the　sound　joint　was　obtained,　and　99%　(the　number　of　joints　is　about　8000)　of　the　solder　joints　were　connected.　The　microstructures　were　made　up　with　Ni-based　solid　solution,　inter-metallic　compounds　and　eutectic　structure.　It　was　shown　that　the　interface　reaction　products　were　γ-Ni,　FeNi3,　AlNi3,　CrB　and　Ni17Si3.　A　great　number　of　borides　were　formed　in　the　brazed　joint.