Developing　full-spectrum　responsive　and　efficient　photocatalysts　is　still　an　important　challenge　in　the　field　of　photocatalytic　treatment　of　trace　environmental　pollutants.　Herein,　full-spectrum　Bi@Bi2Ti2O7　with　rich-oxygen　vacancies　(OVs)　were　fabricated　via　a　one-pot　hydrothermal　method.　The　optimized　composite　photocatalyst　exhibited　a　photocatalytic　efficiency　of　79　%,　more　than　doubled　higher　than　that　of　its　counterpart,　Bi2Ti2O7　(31.79　%),　for　removing　ppb-level　NO　under　visible-near　infrared　(Vis-NIR)　irradiation.　The　enhanced　photo　-catalytic　performance　was　attributed　to　the　co-effect　of　Bi　and　OVs　reveal　by　control　experiments　and　theoretical　calculations,　which　not　only　benefited　the　adsorption　and　photocatalytic　activation　of　NO　but　broadened　light　absorption　to　near　infrared　region.　Furthermore,　the　adsorption　and　photocatalytic　conversion　pathway　of　NO　was　explored　by　in　situ　DRIFTS,　suggesting　that　NO+　as　intermediate　species　is　crucial　to　improve　the　selectivity　of　NO　converting　to　nitrate.　This　work　provides　a　new　perspective　of　constructing　full-spectrum-driven　photo　-catalysts　for　environment　remediation.