A charging control method for an electric vehicle, the method using a vehicle charging device including a power factor correction circuit, and a direct current/direct current (DC/DC) converter, the method comprising: receiving, by a PFC controller, a control pilot signal; restricting, by the PFC controller, an allowable current value derived by analyzing the CP signal to a maximum current value to be applied to the PFC; deriving, by the PFC controller, an output current command value of the DC/DC converter by applying an output value of a voltage controller of the PFC to the allowable current value; and charging, by a DC/DC converter controller, a battery using the output current command value of the DC/DC converter; characterized in that: the control pilot signal is received, by the PFC controller, from an external charging device; wherein the deriving of the output current command value of the DC/DC converter includes: applying, by the PFC controller, the allowable current value and the output value of the voltage controller of the PFC to a proportional-integral controller; and deriving, by the PFC controller, the output current command value of the DC/DC converter by dividing an output value of the PI controller by an output voltage value of the DC/DC converter. receiving, by a PFC controller, a control pilot signal; restricting, by the PFC controller, an allowable current value derived by analyzing the CP signal to a maximum current value to be applied to the PFC; deriving, by the PFC controller, an output current command value of the DC/DC converter by applying an output value of a voltage controller of the PFC to the allowable current value; and charging, by a DC/DC converter controller, a battery using the output current command value of the DC/DC converter; characterized in that: the control pilot signal is received, by the PFC controller, from an external charging device; wherein the deriving of the output current command value of the DC/DC converter includes: applying, by the PFC controller, the allowable current value and the output value of the voltage controller of the PFC to a proportional-integral controller; and deriving, by the PFC controller, the output current command value of the DC/DC converter by dividing an output value of the PI controller by an output voltage value of the DC/DC converter. the control pilot signal is received, by the PFC controller, from an external charging device; wherein the deriving of the output current command value of the DC/DC converter includes: applying, by the PFC controller, the allowable current value and the output value of the voltage controller of the PFC to a proportional-integral controller; and deriving, by the PFC controller, the output current command value of the DC/DC converter by dividing an output value of the PI controller by an output voltage value of the DC/DC converter. applying, by the PFC controller, the allowable current value and the output value of the voltage controller of the PFC to a proportional-integral controller; and deriving, by the PFC controller, the output current command value of the DC/DC converter by dividing an output value of the PI controller by an output voltage value of the DC/DC converter.