The　realization　of　encapsulating　a　functional　guest　into　porous　metal-organic　frameworks-based　thin　films　for　optimizing　and　improving　electrocatalysis　remains　a　significant　challenge.　In　this　work,　an　Fe　bis(salicylaldehyde)ethylenediimine　(Salen)　compound　Fe(Salen)　encapsulated　cobalt-porphyrin　framework　PIZA-1　(Fe(Salen)@PIZA-1)　thin　film　with　different　surface　compositions　was　successfully　developed　by　using　a　modified　epitaxial　layer-by-layer　approach.　After　calcination,　this　composite　Fe(Salen)@PIZA-1　derived　thin　film　is　first　developed　as　oxygen　evolution　catalyst　which　attained　precise　control　on　the　surface　composition.　The　electrochemical　results　showed　that　this　unique　surface　modified　material　has　a　good　catalytic　activity　for　OER　(n　=　340　mV　at　10　mA　cm-2)　and　long-term　stability.　This　strategy　gives　an　insight　into　developing　a　highly　active,　nonprecious　encapsulated　thin　film　in　electrochemical　energy　devices.　Copyright　©　2018　American　Chemical　Society.