A wireless power transmitting apparatus comprising: a power transmitting unit configured to wirelessly transmit a power through a plurality of power transmitting coils (440-1, 440-2); and a power transmitting control unit configured to judge whether or not a variation in a load of a second power transmitting coil of the plurality of power transmitting coils has been generated when the power is transmitted through a first power transmitting coil of the plurality of power transmitting coils, to judge priorities of a plurality of power receiving apparatuses charged with the power transmitted by the power transmitting unit in the case in which the number of power receiving apparatuses is plural if is judged that the variation of the load has been generated, to select a power receiving apparatus among the plurality of power receiving apparatuses according to the judged priorities, to transmit the power to the selected power receiving apparatus until the selected power receiving apparatus is fully charged, and to control the power to another power receiving apparatus sequentially, characterized in that the power transmitting control unit is further configured to generate information request signals, to transmit the information request signals to the plurality of power receiving apparatuses, and to receive information signals transmitted by the plurality of power receiving apparatuses in response to the information request signals, wherein the information signals include information on an identifications (IDs) of the plurality of power receiving apparatuses, information on whether or not the plurality of power receiving apparatuses are mounted in portable terminals, and information on power charged states of the plurality of power receiving apparatuses, and wherein the power transmitting control unit is further configured to allocate the priorities to the plurality of power receiving apparatuses based on the information signals in a scheme in which a first priority is allocated to a first power receiving apparatus that is mounted in a portable terminal and a second priority is allocated to a second power receiving apparatus that is not mounted in a portable terminal. a power transmitting unit configured to wirelessly transmit a power through a plurality of power transmitting coils (440-1, 440-2); and a power transmitting control unit configured to judge whether or not a variation in a load of a second power transmitting coil of the plurality of power transmitting coils has been generated when the power is transmitted through a first power transmitting coil of the plurality of power transmitting coils, to judge priorities of a plurality of power receiving apparatuses charged with the power transmitted by the power transmitting unit in the case in which the number of power receiving apparatuses is plural if is judged that the variation of the load has been generated, to select a power receiving apparatus among the plurality of power receiving apparatuses according to the judged priorities, to transmit the power to the selected power receiving apparatus until the selected power receiving apparatus is fully charged, and to control the power to another power receiving apparatus sequentially, characterized in that the power transmitting control unit is further configured to generate information request signals, to transmit the information request signals to the plurality of power receiving apparatuses, and to receive information signals transmitted by the plurality of power receiving apparatuses in response to the information request signals, wherein the information signals include information on an identifications (IDs) of the plurality of power receiving apparatuses, information on whether or not the plurality of power receiving apparatuses are mounted in portable terminals, and information on power charged states of the plurality of power receiving apparatuses, and wherein the power transmitting control unit is further configured to allocate the priorities to the plurality of power receiving apparatuses based on the information signals in a scheme in which a first priority is allocated to a first power receiving apparatus that is mounted in a portable terminal and a second priority is allocated to a second power receiving apparatus that is not mounted in a portable terminal.