In this study, a graphene electrode showed that the uniform Ag particles on the graphene surface uniformly with the aid of an electric current. The Ag-coated graphene electrode exhibited superior electrochemical properties to the crude graphene. The Ag/Gr samples appeared to have a 2e2.5 times larger area of the cyclic voltammetry curve and capacitance than that of the crude graphene (Ag-0/Gr). The capacitance appeared to increase slightly when the current intensity was increased, but it began to decrease slightly after reaching the peak at 0.1 mA. Overall, the Ag-coated graphene electrode using an electrolytic deposition method can increase the electrochemical activation of graphene electrodes than that of noncoated Ag particles.