▎ 摘　　要

NOVELTY - A three-dimensional porous graphene/nickel-cobalt sulfide composite material preparing method involves weighing graphene oxide and cetyltrimethylammonium bromide dissolved in deionized water and ultrasonically mixing to obtain the solution-1, weighing sulfur ultrasonically dispersed in n-octane to obtain n-octane mixed solution. The n-octane mixed solution is added to the solution-1 and magnetically stirred to obtain solution-2, followed by weighing nickel nitrate and cobalt nitrate dissolved in deionized water, adding dropwise to the mixed solution-2, magnetically stirring, transferring the resulting mixed solution to a Teflon (RTM: PTFE)-lined stainless steel high-pressure reaction kettle, and placing it in an oven for reaction, naturally cooling the resulting product to room temperature, centrifuging, washing, vacuum drying and calcining to obtain the finished product. USE - Method for preparing three-dimensional porous graphene/nickel-cobalt sulfide composite material that is utilized in super-capacitor electrode material (claimed). ADVANTAGE - The method enables preparing the three-dimensional porous graphene/nickel-cobalt sulfide composite material with improved electrochemical performance and larger specific surface area.