Selective　Laser　Melting　(SLM)　technology　is　effective　for　fabricating　complex　shape　parts　with　superior　strength　and　ductility.　However,　the　high-temperature　gradient　and　rapid　solidification　rate　in　the　SLM　process　led　to　unstable　material　microstructure,　which　indicated　an　excellent　strength　and　poor　elongation　of　the　SLM　specimen.　In　order　to　achieve　outstanding　strength-plasticity　matching,　the　influences　of　different　solution　temperatures　(1000　degrees　C,　1100　degrees　C,　and　1200　degrees　C)　on　the　evolution　of　phase　and　microstructure　of　Fe-22Cr-5Ni-0.26　N　duplex　stainless　steel　(DSS)　fabricated　by　SLM　were　investigated.　The　results　were　then　used　to　clarify　the　corresponding　variations　in　mechanical　properties　of　the　specimens　under　tensile　loading.　The　results　revealed　that　the　AS-SLM　specimen　showed　high　yield　strength　and　poor　elongation　which　was　1162.52　MPa　and　4.97%.　Solution　treatment　at　1000　degrees　C　can　increase　the　elongation　from　4.97%　to　29.21%　due　to　the　twophase　structures　recovered,　grains　refined,　as　well　as　eliminate　dislocation　and　residual　stress　through　recrystallization.　As　the　temperature　rose,　the　yield　strength　declined,　while　elongation　remained　almost　unchanged.　Except　for　elongation,　the　tensile　strength,　yield　strength,　and　hardness　were　all　higher　than　those　of　forged　specimens.　Therefore,　solution　treatment　is　an　efficient　strategy　to　improve　the　mechanical　properties　of　the　SLMFe-22Cr-5Ni-0.26　N　DSS　with　excellent　yield　strength　and　plasticity.　(C)　2022　The　Author(s).　Published　by　Elsevier　B.V.