Carbon　inlaid　composites　(C-Mn3O4/MnO)　were　prepared　via　igniting　manganese　acetate　anhydrous　ethanol　solution　in　a　beaker,　and　the　resulting　nanocomposites　present　homogeneous　dispersion　and　stable　property.　The　successful　fabrication　of　the　as-prepared　samples　was　demonstrated　by　x-ray　diffraction　(XRD),　scanning　electron　microscope　(SEM),　transmission　electron　microscopy　(TEM),　and　x-ray　photoelectron　spectroscopy　(XPS).　Various　electrochemical　measurements　including　cyclic　voltammetry　(CV),　galvanostatic　charge/discharge　(GCD),　and　electrochemical　impedance　spectroscopy　(EIS)　were　carried　out.　The　maximum　specific　capacitance　value　of　the　C-Mn3O4/MnO　composites　can　reach　up　to　204　F　g-1　at　a　current　density　of　1　A　g-1,　which　is　much　higher　than　that　of　Mn3O4/MnO　composites　(90　F　g-1).　The　incorporated　carbon　improves　the　electrochemical　performance　and　effectively　decreases　the　charge　transfer　resistance　of　the　composites　(0.67　Ω)　compared　with　pure　Mn3O4/MnO　composites　(42.4　Ω).　Surprisingly,　as　the　number　of　cycles　increase,　the　specific　capacitance　of　C-Mn3O4/MnO　composites　become　larger　with　a　188.3%　of　the　initial　specific　capacitance　value.　This　study　develops　a　novel　and　facile　method　to　fabricate　composites　of　carbon　and　manganic　oxide　which　have　potential　application　in　supercapacitor.　©　2018　IOP　Publishing　Ltd.