Electrochemical　production　of　hydrogen　peroxide　from　the　two-electron　oxygen　reduction　reaction　(ORR)　is　emerging　as　a　promising　method　for　in　situ　production　of　H2O2.　However,　carbon　materials,　one　of　the　most　prospective　catalysts　for　the　two-electron　ORR,　remain　not　active　enough　for　mass　production　of　H2O2　in　acidic　or　neutral　media.　Pore　channel　engineering　is　an　effective　strategy　to　enhance　the　ORR　activity　of　carbon　materials　by　enlarging　the　electrochemically　accessible　surface　and　facilitating　oxygen　diffusion.　Here,　carbon　nanospheres　with　different　pore　sizes　(diameter　and　depth)　were　controllably　prepared　by　a　soft-template　method.　The　optimized　catalyst　exhibited　an　excellent　two-electron　ORR　activity　in　alkaline　and　neutral　media.　Furthermore,　electrochemical　production　of　H2O2　in　neutral　solution　with　a　production　rate　as　high　as　1.27　mol　g(-1)　h(-1)　and　a　Faraday＇s　efficiency　(FE)　＞　98%　were　obtained.　By　combining　electrochemical　tests　with　physical　characterizations　and　numerical　simulations,　the　origin　of　the　enhanced　ORR　performances　was　elucidated.