A wireless power transmitter (200, 400) to wirelessly transmit power to a wireless power receiver, the wireless power transmitter comprising: a transmission coil (210, 230) configured to receive power from a power supply apparatus; and a distribution coil configured to receive the power from the transmission coil (210,230) through electromagnetic induction, and to transmit the received power to the transmission resonance unit (220,420); a transmission resonance unit (220, 420) comprising a plurality of resonant coils (421,422,423) configured to receive the power from the distribution coil and to transmit the power to the wireless power receiver via resonance frequency, the resonant coils (421,422,423) spaced from each other and connected to the distribution coil in series; a controller configured to operate at least one of the resonant coils (421,422,423) corresponding to a region in which the wireless power receiver is detected; a switch unit comprises a plurality of switches (431, 432. 433), wherein each switch (431, 432, 433) is paired with a resonant coil (421, 422, 423), wherein the wireless power transmitter further comprises detectors provided at the side of each of the resonant coils (421, 422, 423) and configured to measure a strength of the magnetic field of the resonant coil(421, 422, 423) and detect whether a wireless power receiver is provided above the respective resonant coil (421, 422, 423), wherein the switch unit is configured to selectively operate at least one of the resonant coils (421, 422, 423) corresponding to a region in which the wireless power receiver is detected, characterized in that the switches (431, 432, 433) are configured in such a way, that the resonant coils (421, 422, 423) may be electrically connected to each other in series or electrically disconnected from each other, and one end of the each switch is connected to the distribution coil and the other end is connected to the each resonant coil, wherein each of the resonant coils (421, 422, 423) of the transmission resonance unit (220, 420) has a multi-tap structure comprising an inner loop and an outer loop spaced apart from the inner loop and surrounding the inner loop, the outer loop being connected to the inner loop, wherein the distribution coil comprises an inductor and a capacitor configured to constantly adjust a resonance frequency for power transmission with the wireless power receiver, and wherein the controller is configured to adjust the capacitance of the capacitor and the inductance of the inductor in order to adjust the resonance frequency according to a number of resonant coils which are simultaneously operating in the transmission unit. a transmission coil (210, 230) configured to receive power from a power supply apparatus; and a distribution coil configured to receive the power from the transmission coil (210,230) through electromagnetic induction, and to transmit the received power to the transmission resonance unit (220,420); a transmission resonance unit (220, 420) comprising a plurality of resonant coils (421,422,423) configured to receive the power from the distribution coil and to transmit the power to the wireless power receiver via resonance frequency, the resonant coils (421,422,423) spaced from each other and connected to the distribution coil in series; a controller configured to operate at least one of the resonant coils (421,422,423) corresponding to a region in which the wireless power receiver is detected; a switch unit comprises a plurality of switches (431, 432. 433), wherein each switch (431, 432, 433) is paired with a resonant coil (421, 422, 423), wherein the wireless power transmitter further comprises detectors provided at the side of each of the resonant coils (421, 422, 423) and configured to measure a strength of the magnetic field of the resonant coil(421, 422, 423) and detect whether a wireless power receiver is provided above the respective resonant coil (421, 422, 423), wherein the switch unit is configured to selectively operate at least one of the resonant coils (421, 422, 423) corresponding to a region in which the wireless power receiver is detected, characterized in that the switches (431, 432, 433) are configured in such a way, that the resonant coils (421, 422, 423) may be electrically connected to each other in series or electrically disconnected from each other, and one end of the each switch is connected to the distribution coil and the other end is connected to the each resonant coil, wherein each of the resonant coils (421, 422, 423) of the transmission resonance unit (220, 420) has a multi-tap structure comprising an inner loop and an outer loop spaced apart from the inner loop and surrounding the inner loop, the outer loop being connected to the inner loop, wherein the distribution coil comprises an inductor and a capacitor configured to constantly adjust a resonance frequency for power transmission with the wireless power receiver, and wherein the controller is configured to adjust the capacitance of the capacitor and the inductance of the inductor in order to adjust the resonance frequency according to a number of resonant coils which are simultaneously operating in the transmission unit.