Flexible　photonic　crystals　are　attractive　devices　owing　to　their　multifold　tunable　parameters　additionally　introduced　by　soft　substrates　or　by　nanostructured,　nano-doped,　or　nano-embedded　soft　matters.　This　not　only　extends　significantly　the　intrinsic　functions　of　photonic　crystals,　but　also　facilitates　easy　integration　of　the　photonic　crystal　device　into　various　optoelectronic　and　sensing　systems.　So　far,　flexible　metallic　photonic　structures　have　been　constructed　on　micrometer　scales　with　complex　fabrication　procedures.　Much　simpler　and　more　reproducible　methods　are　expected　to　achieve　such　metamaterials　in　large　scales　and　at　low　costs.　In　address　to　these　challenges,　we　developed　a　straightforward　approach　to　create　soft　plasmonic　photonic　crystals　consisting　of　gold　nanolines　arranged　on　stretchable　substrates　with　nanoscale　periods,　centimeter-scale　areas,　and　high　reproducibility　using　annealed　gold　nanoparticle　colloids.