Hierarchical chestnut-like manganese cobalt oxide (MnCo₂O₄) nanoneedles (NNs) are successfully grown on nickel foam using a facile and cost-effective hydrothermal method. High resolution TEM image further verifies that the chestnut-like MnCo₂O₄ structure is assembled by numerous 1D MnCo₂O₄ nanoneedles, which are formed by numerous interconnected MnCo₂O₄ nanoparticles with grain diameter of ∼10 nm. The MnCo₂O₄ electrode exhibits high specific capacitance of 1535 F g⁻¹ at 1 A g⁻¹ and good rate capability (950 F g⁻¹ at 10 A g⁻¹) in a 6 M KOH electrolyte. An asymmetric supercapacitor is fabricated using MnCo₂O₄ NNs on Ni foam (MnCo₂O₄ NNs/NF) as the positive electrode and graphene/NF as the negative electrode. The device shows an operation voltage of 1.5 V and delivers a high energy density of ∼60.4 Wh kg⁻¹ at a power density of ∼375 W kg⁻¹. Moreover, the device exhibits an excellent cycling stability of 94.3% capacitance retention after 12000 cycles at 30 A g⁻¹. This work demonstrates that hierarchical chestnut-like MnCo₂O₄ NNs could be a promising electrode for the high performance energy storage devices.