A wireless power transmitter (100; 200) for transmitting wireless power to a plurality of wireless power receivers (110; 210), the wireless power transmitter (100; 200) comprising: a communication unit configured to receive power management information from each of the plurality of wireless power receivers (110; 210), wherein the power management information includes a power capacity of each of the plurality of wireless power receivers (110; 210); a controller configured to: analyze the power management information, determine whether an output capacity of the wireless power transmitter (100; 200) is greater than a total sum of power capacities of the plurality of wireless power receivers (110; 210), if the output capacity of the wireless power transmitter (100; 200) is determined to be less than or equal to the total sum of the power capacities of the plurality of wireless power receivers (110; 210), determine whether to perform wireless power transmission in a first mode, if determined to perform wireless power transmission in the first mode, identify a predetermined charging method for sorting the plurality of wireless power receivers (110; 210) into an order from among a plurality of charging method candidates, sort each of the plurality of wireless power receivers (110; 210) into the order based on the identified predetermined charging method, select at least one wireless power receiver to be charged from among the plurality of wireless power receivers based on the order and the output capacity of the wireless power transmitter (100; 200), notify the selected at least one wireless power receiver that the selected at least one wireless power receiver is determined to be charged, and transmit wireless power to the selected at least one wireless power receiver. a communication unit configured to receive power management information from each of the plurality of wireless power receivers (110; 210), wherein the power management information includes a power capacity of each of the plurality of wireless power receivers (110; 210); a controller configured to: analyze the power management information, determine whether an output capacity of the wireless power transmitter (100; 200) is greater than a total sum of power capacities of the plurality of wireless power receivers (110; 210), if the output capacity of the wireless power transmitter (100; 200) is determined to be less than or equal to the total sum of the power capacities of the plurality of wireless power receivers (110; 210), determine whether to perform wireless power transmission in a first mode, if determined to perform wireless power transmission in the first mode, identify a predetermined charging method for sorting the plurality of wireless power receivers (110; 210) into an order from among a plurality of charging method candidates, sort each of the plurality of wireless power receivers (110; 210) into the order based on the identified predetermined charging method, select at least one wireless power receiver to be charged from among the plurality of wireless power receivers based on the order and the output capacity of the wireless power transmitter (100; 200), notify the selected at least one wireless power receiver that the selected at least one wireless power receiver is determined to be charged, and transmit wireless power to the selected at least one wireless power receiver. analyze the power management information, determine whether an output capacity of the wireless power transmitter (100; 200) is greater than a total sum of power capacities of the plurality of wireless power receivers (110; 210), if the output capacity of the wireless power transmitter (100; 200) is determined to be less than or equal to the total sum of the power capacities of the plurality of wireless power receivers (110; 210), determine whether to perform wireless power transmission in a first mode, if determined to perform wireless power transmission in the first mode, identify a predetermined charging method for sorting the plurality of wireless power receivers (110; 210) into an order from among a plurality of charging method candidates, sort each of the plurality of wireless power receivers (110; 210) into the order based on the identified predetermined charging method, select at least one wireless power receiver to be charged from among the plurality of wireless power receivers based on the order and the output capacity of the wireless power transmitter (100; 200), notify the selected at least one wireless power receiver that the selected at least one wireless power receiver is determined to be charged, and transmit wireless power to the selected at least one wireless power receiver.