Weld　connections　have　been　widely　used　in　fabrication　and　assembly　of　stainless　steel　structures.　However,　few　experimental　studies　at　home　and　abroad　have　been　concentrated　on　the　loading　capacity　of　stainless　steel　welded　connections.　In　order　to　investigate　the　loading　capacity　of　the　fillet　weld　connections　of　Chinese　S22053-grade　duplex　stainless　steel　members,　tensile　tests　were　conducted　on　six　specimens　with　transverse　fillet　weld　connections　and　five　specimens　with　longitudinal　fillet　weld　connections.　The　ultimate　load-bearing　capacity　and　the　ultimate　strength　of　the　welded　connections　were　tested,　and　the　deformation　development　with　the　load　increment　was　measured　as　well.　The　test　results　indicate　that　the　failure　section　angle　is　not　45°　but　an　average　of　around　29°.　The　ultimate　strength　is　973MPa　and　the　average　deformation　of　welds　is　1.139mm　for　transverse　fillet　welding　joint　specimens.　With　an　average　of　around　46°,　the　failure　section　angle　is　closed　to　45°　for　longitudinal　fillet　welding　joint　specimens,　For　this　kind　of　members,　the　ultimate　strength　is　637MPa　and　the　average　deformation　of　welds　is　1.792mm.　The　ultimate　strength　of　transverse　fillet　welded　connections　is　1.53　times　that　of　longitudinal　fillet　welded　connections.　©　2016,　Editorial　Office　of　China　Civil　Engineering　Journal.　All　right　reserved.