A wireless power transmission apparatus comprising: a resonant circuit including a plurality of coils and a plurality of capacitor elements respectively connected to the plurality of coils ; a first sensor configured to sense a change in inductance of each of the plurality of coils ; a second sensor configured to sense a change in a quality factor of each of the plurality of coils ; and a controller configured to: calculate feature values based on an inductance variation and a quality factor variation for detecting a foreign object, and determine the foreign object is present on a charging surface of the wireless power transmission apparatus based on whether a feature value combination selected from among the feature values falls within a reference region on a coordinate plane formed by an intersection of a first axis and a second axis, wherein the first axis is based on inductance variation and the second axis is based on quality factor variation, wherein the feature values include an average of the inductance variations of the coils, an average of the quality factor variations of the coils, a difference between the maximum inductance variation and the minimum inductance variation among the coils , and a difference between the maximum quality factor variation and the minimum quality factor variation among the coils . a resonant circuit including a plurality of coils and a plurality of capacitor elements respectively connected to the plurality of coils ; a first sensor configured to sense a change in inductance of each of the plurality of coils ; a second sensor configured to sense a change in a quality factor of each of the plurality of coils ; and a controller configured to: calculate feature values based on an inductance variation and a quality factor variation for detecting a foreign object, and determine the foreign object is present on a charging surface of the wireless power transmission apparatus based on whether a feature value combination selected from among the feature values falls within a reference region on a coordinate plane formed by an intersection of a first axis and a second axis, wherein the first axis is based on inductance variation and the second axis is based on quality factor variation, wherein the feature values include an average of the inductance variations of the coils, an average of the quality factor variations of the coils, a difference between the maximum inductance variation and the minimum inductance variation among the coils , and a difference between the maximum quality factor variation and the minimum quality factor variation among the coils . calculate feature values based on an inductance variation and a quality factor variation for detecting a foreign object, and determine the foreign object is present on a charging surface of the wireless power transmission apparatus based on whether a feature value combination selected from among the feature values falls within a reference region on a coordinate plane formed by an intersection of a first axis and a second axis, wherein the first axis is based on inductance variation and the second axis is based on quality factor variation, wherein the feature values include an average of the inductance variations of the coils, an average of the quality factor variations of the coils, a difference between the maximum inductance variation and the minimum inductance variation among the coils , and a difference between the maximum quality factor variation and the minimum quality factor variation among the coils . <EOS>