Vanadium oxide nanotube was synthesized by hydrothermal treatment with high-speed stirring. The preparation involved dissolution of V₂O₅ into H₂O₂ and high-speed stirring (10000r/min) with hexadecylamine. The product was characterized by using scanning electron microscopy, transmission electron microscope, X-ray diffraction and thermogravimetric analysis. The electrochemical properties of the material as the electrode of electrochemical capacitor were evaluated by cyclic voltammetry in a three electrode system consisting of a saturated calomel electrode as reference electrode, platinum as a counter electrode and the active material as the working electrode. A capacitance of 297F/g was obtained at a scan rate of 2mV/s in 2M KCl, and it still maintained a high capacitance of 210F/g at a higher scan rate of 50mV/s in 2M KCl. Even though the materials achieved the highest capacitance of 304F/g in 2M LiCl at the scan rate of 2mV/s, the specific capacitance degraded significantly as the increase of the scan rate.