Ag-bearing　2205　duplex　stainless　steel　was　prepared　by　adding　Cu-Ag　alloy　particles,　followed　by　solution　treatment　at　1　050,　1　075,　1　100,　1　125　and　1　150℃,　respectively.　The　effects　of　solution　temperature　on　microstructure,　mechanical　properties,　corrosion　resistance　and　antibacterial　property　of　Ag-bearing　2205　duplex　stainless　steels　were　studied　by　means　of　optical　microscope(OM),　scanning　electron　microscope(SEM),　tensile　test,　electrochemical　workstation　and　film　mulching　method.　Meanwhile,　parent　material　2205　as　well　as　Cu-bearing　2205　was　prepared　as　references.　The　results　show　that　with　the　increase　of　solution　temperature,　the　volume　fraction　of　γ　decrease,　and　γ　coarsens　first　and　then　shrinks　while　the　volume　fraction　of　α　increases.　In　addition,　the　Ag　phase　in　micro　scale　is　distributed　in　α　phase　and　at　the　α/γ　boundaries,　and　the　increase　of　solution　temperature　promotes　the　dissolution　of　Ag　phase.　The　Rockwell　hardness　as　well　as　tensile　strength　of　Ag-bearing　material　decreases　first　and　then　increases　with　the　rise　of　solution　temperature,　while　the　elongation　rate　goes　up　as　the　temperature　increases.　The　comprehensive　mechanical　properties　of　Ag2205　are　the　best　and　superior　to　that　of　parent　material　2205　as　well　as　Cu-bearing　2205　after　solution　treatment　at　1　150℃.　Addition　of　Ag　reduces　the　corrosion　resistance　of　2205　material,　whereas　the　increase　of　solution　temperature　improves　the　corrosion　resistance.　The　corrosion　resistance　of　Ag2205　is　better　than　that　of　parent　material　after　solution　treatment　at　1　125℃.　The　corrosion　resistance　of　Cu-bearing　2205　is　the　best　among　3　kinds　of　materials.　Ag-bearing　materials　after　solution　treatment　at　1　075℃　or　above　possess　excellent　antibacterial　properties,　whereas　both　Cu-bearing　2205　and　parent　material　do　not　show　antibacterial　effect.　©　2019,　Central　South　University　Press.　All　right　reserved.