The present invention pertains to a cathode for a secondary battery, comprising: a wire-type current collector; a metal-based cathode active material layer, which is formed on the surface of the wire-type current collector and includes a metal-based active material; and a graphite-based cathode mixture layer, which is formed on the surface of the metal-based cathode active material layer and includes a mixture of a graphite-based active material, a conductive material and a first polymer binder. Since the present invention pertaining to the cathode comprising the metal-based cathode active material layer and the graphite-based cathode mixture layer includes the graphite-based cathode mixture layer having a buffer role, isolation or separation of the metal-based active material due to extreme volume expansion during charging and discharging may be prevented. In addition, since the graphite-group cathode mixture layer has high affinity to an organic electrolyte solution, the present invention can overcome the disadvantage of the metal-based cathode active material having low affinity to the organic electrolyte solution.