Constructing　abundant　interfaces　in　composite　catalysts　to　promote　their　synergistic　effects　is　the　key,　though　a　tough　challenge　for　enhancing　photo-Fenton　catalysts　performance.　Herein,　a　pore-confinement　strategy　is　proposed　to　construct　plasmonic　Z-scheme　PGDY@MIL(Fe/Cu)　for　ultra-fast　removal　dinotefuran.　Graphdiyne　was　grown　on　Cu　sites　of　MIL(Fe/Cu)　and　formed　nano-elliptical　graphdiyne　(PGDY)　nanosheets　within　the　confinement　of　pores,　while　the　C-Cu　interfacial　channels　were　constructed　to　promote　electron　transfer　in　the　catalytic　process.　Upon　illumination,　PGDY　strongly　coupled　with　the　incident　light　and　localized　surface　plasmon　resonance　(LSPR)　could　be　excited,　thus　enhancing　light　absorption　efficiency　of　PGDY@MIL(Fe/Cu)　at　375-600　nm　and　inducing　numerous　hot　electrons.　These　unique　properties　accelerated　separation　efficiency　of　PGDY@MIL(Fe/Cu)　for　photogenerated　carriers,　which　boosted　the　generation　rate　of　active　radicals　and　Fe3+/　Fe2+　and　Cu2+/Cu+　cycling　rates　during　photo-Fenton　catalysis.　Finally,　PGDY@MIL(Fe/Cu)　exhibited　excellent　catalytic　degradation　kinetics　(99.1　%　within　40　min),　mineralization　efficiency　(98　%　within　2　h),　and　catalytic　cycling　stability　for　dinotefuran　(DNT)　compared　to　the　reported　advanced　catalyst.