Abstract: Ni(OH)₂-VS₂ nanocomposites were synthesized using hydrothermal method. X-ray diffraction (XRD) and scanning electron microscope (SEM) were used to characterize the structure and morphology of the composites. The as-prepared nanocomposites were employed as electrode materials for supercapacitors and the electrochemical properties were studied by cyclic voltammetry (CV), constant current charge and discharge and an impedance method. Meanwhile, the effect of the mass ratio of Ni(OH)₂ to VS₂ on the electrochemical properties was discussed. The results showed that Ni(OH)₂-VS₂ nanocomposite had most excellent electrochemical performance with the mass ratio of 5:1. It has the highest specific capacitance of 4021 F/g (at a current density of 1 A/g) and a long term cycling stability (80% capacitance retention after 500 cycles at a current density of 5 A/g).