Various examples of the present invention relate to an electronic device, and an autofocusing processing method in the electronic device, and the electronic device can: receive a first image obtained by imaging a subject at a first position of at least one lens, when autofocus searching is performed; perform image processing and autofocus processing for the first image; receive a second image obtained by imaging the subject at a second position of the lens; generate compensation information by using first brightness information of the first image and second brightness information of the second image; compensate for the brightness of the second image by using the compensation information; and perform image processing and autofocus processing for the second image of which the brightness has been compensated for.