This　paper　reports　magnetically　recoverable　Ag/Bi2Fe4O9　nanoparticles　(BFO　NPs)　using　as　a　photoexcited　catalyst.　The　Ag　NPs　are　uniformly　distributed　on　the　surface　of　BFO　NPs.　Compared　to　BFO　NPs,　the　decomposition　rate　of　methyl　orange　for　Ag/BFO　NPs　under　the　visible-light　is　greatly　enhanced　due　to　the　high　surface　plasmon　resonance　and　electron　conductivities　of　Ag　NPs.　Moreover,　Ag/BFO　NPs　have　a　higher　saturation　magnetization　than　BFO　NPs,　which　makes　them　can　be　collected　easily　under　magnetic　fields.　Therefore,　Ag/BFO　NPs　are　potential　recoverable　visible-light-driven　photocatalyst　for　environmental　pollutants　degradation.