Novel　MnO　2　-doped　holey　carbon　materials　were　obtained　by　an　efficient　and　facile　synthetic　method　using　chitosan,　potassium　hydroxide　and　potassium　permanganate　as　the　raw　materials.　The　carbon　framework　with　high　specific　surface　area　was　derived　from　chitosan　by　carbonization　and　activation　approach,　afterwards,　MnO　2　nanorods　were　grown　on　the　surface　of　porous　carbon　by　one-step　agitation　method　and　the　MnO　2　-doped　holey　carbon　material　was　obtained.　The　scanning　electron　microscopy,　energy-dispersive　X-ray,　transmission　electron　microscopy,　X-ray　diffraction,　N　2　adsorption-desorption　measurements,　Raman　spectroscopy　and　X-ray　photoelectron　spectroscopy　were　employed　to　analyze　the　physicochemical　characteristics　of　the　MnO　2　-doped　holey　carbon　materials.　The　electrochemical　performance　of　these　materials　displayed　well　through　relative　tests　including　cyclic　voltammetry,　galvanostatic　charge-discharge,　and　electrochemical　impedance　spectroscopy　measurements　in　6.0　M　KOH　solution.　Especially,　this　as-obtained　electrode　material　with　the　optimum　ratio　presented　a　high　gravimetric　capacitance　(460F　g　−1　at　0.2　A　g　−1　)　and　exceptional　capacitance　reservation　(91.67%　at　10　A　g　−1　over　10,000　cycles)　in　the　three-electrode　system　with　6.0　M　KOH　solution　as　the　electrolyte.　©　2019　Elsevier　Inc.