In this paper, AR（Aromatic Resin）pitch as raw materials, high performance activated carbons were prepared by chemical activation method. The specific area and porosity of the activated carbon samples were studied by the nitrogen adsorption. Furthermore, the simulative supercapacitors were assembled with the resultant carbons, and their electrochemical performances were investigated by charge-discharge of constant current, Cyclic voltammetry. The results showed that the discharge efficiency of simulative supercapacitors kept above 90% after 300 cycle tests, and the average specific capacitance reached 187.8 F•g-1 at 50 mA•g-1 current density and 131.5 F•g-1 at 500 mA•g-1 current density. The specific capacitance retention was 71.3%, the capacitance attenuation ratio was 4.0%.