Developing　novel　photocatalysts　for　green　synthesis　of　important　organic　intermediates　under　mild　conditions　is　of　great　significance　in　industry.　In　this　work,　we　synthesized　the　oxygen-deficient　three-dimensionally　ordered　macroporous　(3DOM)　BiVO4-supported　nanosized　Ru　(xRu/3DOM　BiVO4,　x=0.24-2.16　wt　%)　catalysts　by　the　polymethyl　methacrylate-templating,　ethylene　glycol　reduction,　and　post-thermal　treatment　methods.　Physicochemical　properties　of　the　materials　were　characterized　using　the　various　techniques,　and　their　catalytic　activities　for　the　visible-light-driven　selective　oxidation　of　benzyl　alcohol　to　benzaldehyde　were　measured.　It　is　found　that　the　Ru　nanoparticles　(NPs)　with　a　size　of　1.2-1.5　nm　were　uniformly　dispersed　on　the　surface　of　3DOM　BiVO4,　which　gave　rise　to　a　significant　enhancement　in　photocatalytic　activity.　Benzyl　alcohol　conversion　first　went　up　and　then　dropped　down　with　the　rise　in　loading　of　Ru　NPs.　The　0.95Ru/3DOM　BiVO4-Ar-300　sample　was　thermally　treated　in　an　Ar　flow　at　300　degrees　C　for　4　h　showed　the　highest　benzyl　alcohol　conversion　(78　%)　with　a　benzaldehyde　selectivity　of　100　%　(benzaldehyde　formation　rate　was　1380　mu　mol/(g　h)　after　6　h　of　illumination)　and　good　photocatalytic　stability.　The　high　dispersion　of　Ru　NPs　and　formation　of　oxygen　vacancies　in　3DOM　BiVO4　improved　separation　and　transfer　efficiency　of　the　photogenerated　electrons/holes　and　increased　the　superoxide　radical　concentration.　In　addition,　the　possible　mechanism　of　benzyl　alcohol　oxidation　over　0.95Ru/3DOM　BiVO4-Ar-300　was　also　discussed.　The　oxygen-deficient　3DOM　BiVO4-supported　Ru　NPs　have　promising　applications　for　selective　oxidation　of　organics.