Inspired by the unique structure and property of moringa oleifera, Cai et al. used the branches of moringa oleifera (MOBs) as the precursor to synthesize three-dimensional (3D) heteroatom-doped and hierarchical egg-box-like carbons (HEBLCs) by a facile room temperature pre-treatment and direct pyrolysis process . The micro-scale "egg-box" framework has proven to provide more favourable channels for the diffusion of electrolyte ions into internal carbons to enhance the electrochemical supercapacitor performances especially with a high active material loading. The MOBs were dispersed in KOH solution with various concentrations (0.2 -0.4 M), and heated at 800 ˚C for 2 h under N2 atmosphere, and named as HEBLC-2, HEBLC-3, HEBLC-4, respectively refers to the KOH concentration solution (0.2, 0.3, and 0.4)). In order to compare the supercapacitive efficiencies of HEBLC electrodes, activated carbon derived from MOBs was prepared by carbonizing MOBs at 800 ˚C for 2 h under N2 atmosphere without pre-treatment, and then activated at 800 ˚C for 2 h by KOH, which was named as AC-800. Besides, MOBs were directly carbonized under the same conditions as HEBLCs, and named as C-800. XPS studies of HEBLC-3 showed the O, and N heteroatoms with 4.5%, and 1.3%, respectively. From BET analysis, the SBET of HEBLCs were found to be increased from 2033 to 2312 m 2 g -1 , as the concentration of KOH increased from 0.2 to 0.3 M, and the SBET value was reduced to 1742 m 2 g -1 for HEBLC-4, which could be probably owing to pores collapse. The electrochemical properties of the HEBLCs, AC-800, and C-800 were analysed in three-electrode configuration using 6.0 M KOH aqueous electrolyte solution. At 0.5 A g -1 , the specific capacitance values of the fabricated HEBLC-2, HEBLC-3, HEBLC-4, AC-800, and C-800 electrodes were determined as 374, 355, 266, 203, and 134 F g -1 , respectively. Here, it is worthy to note that, HEBLC-2 exhibited higher capacitance value at lower current density of 0.5 A g -1 , whereas HEBLC-3 displayed superior capacitance at higher current density, and could retain a capacitance of 230 F g -1 even at a higher current density of 50 A g -1 , which could be due to more suitable pore size distribution.