It　is　of　significance　to　replace　Pt-based　electrocatalyst　with　high　activity　and　low　price　non-noble　metal　oxygen　reduction　reaction　(ORR)　electrocatalysts　for　large-scale　application　of　fuel　cells.　Herein,　we　display　a　kind　of　core–shell　hybrid　composed　of　Fe/Fe3C@nitrogen-doped　carbon　decorated　on　graphene　(denoted　as　Fe/Fe3C@NC-Gs)　as　the　efficient　ORR　electrocatalyst.　The　optimal-performing　Fe/Fe3C@NC-G-2　catalyst　presents　an　outstanding　ORR　performance　in　terms　of　a　high　onset　potential　(Eonset)　of　0.97　V　(vs.　RHE)　and　half-wave　potential　(E1/2)　of　0.88　V　(vs.　RHE),　respectively,　possible　to　rival　those　of　the　commercially　available　Pt/C　in　an　alkaline　electrolyte　solution.　Besides,　the　Fe/Fe3C@NC-G-2　catalyst　manifests　better　stability　and　methanol　tolerance　than　those　of　commercially　available　Pt/C,　which　is　of　importance　for　the　excogitation　and　fabrication　of　novel　electrocatalysts　originated　from　non-precious　metals.　Accordingly,　it　is　confirmed　that　the　integration　of　Fe/Fe3C@NC　and　graphene　enables　plentiful　active　sites　stemmed　from　different　active　species　of　Fe3C,　Fe,　and　NC　and　intrinsic　hierarchically　porous　structure　with　intimate　contact　of　various　components,　which　would　give　Fe/Fe3C@NC-G-2　a　positive　impact　on　ORR　activity.　©　2020