We　demonstrate　the　fabrication　and　characterization　of　large　area　metallic　photonic　crystals　(MPCs)　in　the　form　of　gold　nano-island　grating　structures.　The　spectroscopic　properties　of　the　MPCs　characterized　by　the　angle-resolved　optical　extinction　spectrum　measurements　show　strong　couplings　between　the　waveguide　resonance　modes　and　the　particle　plasmon　resonance　of　the　gold　nanostructures,　indicating　the　success　of　this　fabrication　method.　The　excellent　optical　responses　of　the　nano-island　MPCs　with　the　advantages　of　large-area　fabrication,　low　cost,　and　high　speed　make　it　show　potential　applications　in　optoelectronic　devices　and　sensors.