Etched　graphite　felt　(EGF)　was　successfully　fabricated　using　in　situ　CoOX　etching　process　and　used　as　a　cathode　to　degrade　diuron　in　the　electro-Fenton　(E-Fenton)　process.　The　graphite　felt　prepared　using　the　in　situ　CoOX　etching　process　could　markedly　enhance　the　electrochemical　properties　with　high　electroactive　surface　area　and　rapid　electron　transfer　capacity.　Due　to　the　high　content　of　defects　and　porous　structure,　EGF　electrode　exhibited　superior　performance　with　high　yield　of　hydrogen　peroxide　and　rapid　regeneration　capacity　of　Fe2+,　achieving　100%　removal　of　diuron　(20　mg/L)　at　-0.7　V/SCE　within　50　min.　In　addition,　the　stability　of　the　EGF　cathode　showed　no　significant　decay　in　the　performance　after　35　cycles.　EGF　electrode　had　achieved　good　degradation　effect　for　different　pollutants,　such　as　atrazine,　amoxicillin,　atenolol　and　2,　4,　6-trichlorophenol.　In　three　runs,　the　EGF　cathode　showed　low　Co　leaching　(＜　1　ppm).　Moreover,　the　possible　degradation　pathways　of　diuron　were　proposed　by　analyzing　the　intermediates　in　this　work.　The　results　obtained　in　this　work　highlight　the　potential　of　EGF　electrode　for　use　as　an　E-Fenton　cathode.