The　leaching　behavior　of　molybdenite　was　investigated　in　H2O2-H2SO4　solution　in　this　paper.　The　results　show　that　H2O2　was　an　effective　oxidant　for　molybdenite　leaching,　but　it　had　fast　decomposition　kinetics.　A　final　molybdenum　extraction　of　73.0%　was　obtained　under　the　experimental　conditions　of　0.5　mol/L　H2SO4,　0.5　mol/L　H2O2,　and　the　fresh　H2O2　addition　enhanced　molybdenum　extraction　from　73.0　to　94.5%.　The　leaching　process　was　controlled　by　a　mixture　of　surface　reactions　and　diffusion,　and　the　activation　energy　was　27.98　kJ/mol.　Ethylene　glycol　enhanced　molybdenum　extraction　and　improved　the　stability　of　H2O2.　Electrochemical　studies　suggested　that　the　decomposition　kinetics　of　H2O2　was　faster　than　that　of　molybdenite　oxidation,　and　ethylene　glycol　enhanced　recovery　by　increasing　the　resistance　of　H2O2　decomposition　and　decreasing　the　resistance　of　molybdenite　oxidation.　XRD　and　XPS　analysis　confirmed　that　ethylene　glycol　did　not　alter　the　phase　composition　and　the　surface　chemical　statues　of　molybdenite.