Metal-organic　frameworks　(MOFs)　as　emerging　material　have　drawn　much　attention　to　apply　to　the　field　of　water　splitting.　In　this　paper,　layered　NiFe-MIL-53　and　nanoflower-like　CoFe-MOF-74　were　sequentially　grown　on　nickel　foam　through　two-step　in-situ　growth　to　construct　a　MOF-74/MIL-53　heterojunction.　On　this　basis,　we　used　the　localized　surface　plasmon　resonance　(LSPR)　effect　of　gold　nanoparticles　(Au　NPs)　to　significantly　improve　the　oxygen　evolution　reaction　performance　of　MOF-74/MIL-53　heterojunction.　Under　illumation,　the　obtained　Au-MOF-74/MIL-53　exhibits　a　lower　overpotential　of　218　mV,　which　is　far　superior　to　commercial　catalyst.　The　reaction　kinetics　are　significantly　enhanced　due　to　the　lower　charge　transfer　resistance　and　the　higher　electric　double　layer　capacitance.　We　confirmed　the　existence　of　charge　transfer　between　Au　NPs　and　MOFs,　and　at　the　same　time,　the　deposition　of　Au　NPs　significantly　reduced　the　charge　transfer　resistance　of　MOF-74/MIL-53.　On　the　basis　of　our　work,　we　provide　a　novel　MOF-based　electrocatalytic　nanocomposite　structure　for　efficient　water　splitting.　©　2024　Hydrogen　Energy　Publications　LLC