A wireless electronic device and a method thereof, which supports fast wireless charging, are provided. A wireless power transmission device comprises a wireless charging circuit comprising a transmission coil; and one or more processors operatively connected with the wireless charging circuit, wherein the one or more processors are configured to: receive, from a wireless power reception device, a first signal to request wireless charging information related to the wireless power transmission device using the wireless charging circuit while a power is transmitted via the transmission coil for wirelessly charging the wireless power reception device; in response to the receiving of the first signal, transmit, through the wireless charging circuit to the wireless power reception device, first charging information comprising information relating a voltage, a current or a power that is supportable by the wireless power transmission device; receive, from the wireless power reception device, a second signal including second charging information relating to the voltage, the current or the power using the wireless charging circuit; based at least in part on the second signal, control the wireless charging circuit to change a voltage, a current or a power to be applied to the transmission coil.