The invention discloses a nickel-cobalt sulpho-spinel for super capacitor and a preparation method of the nickel-cobalt sulpho-spinel and aims to further improve the pseudocapacitance feature of nickel-cobalt metal compound composite material and increase the specific discharge capacity and cycling stability of the nickel-cobalt metal compound composite material. The preparation method includes: nickel salt, cobalt salt and penicillamine are used as raw materials, a solvent-thermal method is used, precursor nickel salt, cobalt salt and penicillamine proportion, solvent varieties, solvent-thermal temperature/time, pH values and the varieties of used inorganic acids are controlled, and subsequent procedures of centrifuging/washing/drying/roasting and the like are performed to obtain the nickel-cobalt sulpho-spinel nano material. Tests show that when the nickel-cobalt sulpho-spinel nano material is used as electrode material to produce a super capacitor, high specific discharge capacity and cycling stability are achieved. In addition, the preparation method is low in reaction temperature, controllable in reaction, capable of satisfying the requirements of industrial production, suitable for large-batch production and promising in development prospect.