Large-area　metallic　photonic　crystals　(MPCs)　consist　of　two-dimensional　(2D)　periodical　arrays　of　gold　nano-holes　are　fabricated　by　solution-processible　gold　nanoparticles　using　interference　lithography　in　combination　with　subsequent　lift-off　and　annealing　processes.　By　controlling　the　annealing　temperature,　the　2D　nano-hole　arrays　are　transformed　into　nano-island　arrays,　enabling　easy　achievements　of　two　different　photonic　devices.　The　microscopic　characterization　shows　convincingly　the　success　of　the　fabrication　techniques　and　verifies　our　proposed　mechanisms　for　this　kind　of　nanoscale　morphology　transformation.　This　kind　of　mechanisms　can　be　applied　extensively　in　the　metallic　nanofabrication　and　in　the　realization　of　plasmonic　photonic　devices.　©　2012　Chinese　Optics　Letter.