Supercapacitors are a type of high-performance electrochemical energy storage device with high power density, strong cyclingstability, and fast charge-discharge rates, which play a crucial role in the storage of renewable energy. To enhance the performance of supercapacitors and meet the growing demands for energy storage, NiCo-MOF@ CNTs composite electrode materials were prepared using ahydrothermal method. By varying the amount of carbon nanotubes (CNTs), the energy storage properties of the composite material wereoptimized. CNTs not only increase the material′s specific surface area and conductivity, but also form a unique vine-like structure withNiCo-MOF. NiCo-MOF constitutes the leaves of the vine in this structure,providing active sites for charge storage, while CNTs form thestems connecting to the leaves, continuously transferring electrons to the active centers, thereby improving electrochemical performance.In comparison to the case without the addition of CNTs, the specific surface area of the most effective NiCo-MOF@ CNTs5 increases from25.65 m2 / g to 44.27 m2 / g and the average pore size decreases from 37.86 nm to 18.99 nm. The pore distribution is more favorable for thediffusion and transport of electrolyte ions. The specific capacitance reaches up to 1 569 F/ g at a current density of 1 A/ g, and the rate performance reaches 74% at an increased current density of 20 A/ g, which is higher than that of the NiCo-MOF electrode material withoutCNTs (42.6%). After assembling into an asymmetric supercapacitor, the specific capacitance remains at 194 F/ g at a current density of1 A/ g and still maintains 147 F/ g at a higher current density of 20 A/ g. After 5 000 charge-discharge cycles at 5 A/ g current density,the capacitance retention rate is 91.2%. The energy density at a power density of 759 W/ kg reaches 50.63 Wh/ kg, and a high energy density of 41.94 Wh/ kg is achieved even at an increased power density of 17.3 kW/ kg.