Enhancing　catalytic　activity,　durability　and　reducing　costs　are　major　challenges　in　commercialization　of　proton　exchange　membrane　fuel　cells　(PEMFCs).　Non-precious　metal　catalysts　face　durability　challenges　when　applied　to　PEMFCs,　while　platinum　(Pt)-based　catalysts　are　hampered　by　their　high　costs　and　weak　interactions　with　carbon　supports,　limiting　their　application　in　PEMFCs.　Combining　Pt-based　catalysts　with　iron-nitrogen-carbon　(FeNC)　supports　can　improve　the　oxygen　reduction　reaction　performance.　However,　traditional　preparation　methods　for　FeNC　supports,　such　as　liquid-phase　and　hydrothermal　synthesis,　are　cumbersome　and　have　low　yield.　Here,　we　introduce　a　simple　ball-milling　method　to　synthesize　FeNC　with　high　yield　that　achieves　a　high-surface-area　and　uniform　dispersion　of　Fe　atoms.　The　FeNC　support　anchors　PtFe　nanoparticles　at　FeNx　sites.　This　enhances　support-alloy　interactions　and　suppresses　particle　aggregation.　The　obtained　catalyst　denoted　as　PtFe/B-FeNC　exhibits　an　exceptional　mass　activity　of　2.57　A　mgPt−1　at　0.9　V,　representing　a　12.2-fold　increase　compared　to　the　commercial　Pt/C.　There　is　only　30　mV　degradation　for　the　catalyst　after　120　k　cycles,　indicating　outstanding　stability.　This　research　paves　the　way　for　the　green　synthesis　of　PtFe/B-FeNC　with　high　yield,　facilitating　the　development　of　commercial　materials　for　other　electrochemical　devices.　©　2025　IOP　Publishing　Ltd.　All　rights,　including　for　text　and　data　mining,　AI　training,　and　similar　technologies,　are　reserved.