The　novel　La-B-O-C　composites　were　fabricated　as　catalysts　for　methane　catalytic　combustion　at　low　temperature,　and　considering　the　effect　of　newly　C-O　bond　on　B-site　ions　as　active　sites,　three　metal　ions　(Co,　Mn,　Fe)　were　selected　for　experiment.　XRD,　N-2-physisorption,　XPS　and　H-2-TPR　measurements　were　used　to　characterize　the　physicochemical　properties　of　catalysts,　which　showed　that　the　newly　established　C-O-B　bond　reduced　the　ionic　valence　of　the　B-site,　and　the　redox　capacities　were　increased　or　decreased　to　different　degrees,　respectively.　Catalytic　tests　showed　that　T-50　of　La-Co-C-O　composites　(LC-C)　and　La-Fe-C-O　composites　(LF-C)　are　377　degrees　C　and　482　degrees　C,　much　lower　than　that　of　unmodified　catalyst,　respectively.　But　T-50　of　La-Mn-C-O　composites　(LM-C)　increases　to　507　degrees　C　from　493　degrees　C.　The　superior　performance　of　LC-C　could　be　attributed　to　the　high　oxygen　vacancies　and　enhanced　redox　property,　and　the　better　performance　of　LFC　was　mainly　benefited　from　the　increase　in　lattice　oxygen.　For　LM-C,　the　sacrifice　of　Mn4+　weakened　the　catalytic　activity.　There　are　more　obvious　mechanistic　differences　for　different　B-site　elements　in　the　La-B-O-C.　The　study　will　bring　innovative　insights　into　the　design　of　excellent　composites　catalysts　for　methane　oxidation.　(C)　2021　Hydrogen　Energy　Publications　LLC.　Published　by　Elsevier　Ltd.　All　rights　reserved.