According to various embodiments, an electronic device may comprise: a display module; at least one camera disposed on the rear surface of the display module; a memory for storing information related to user authentication; and a processor operatively connected to the display module, the at least one camera, and the memory. The processor may: execute a function for the user authentication; identify face position information of a user by using the at least one camera; identify coordinate information according to the user's touch input inputted through the display module; select the at least one camera on the basis of the face position information and the coordinate information; obtain at least one image by using the selected at least one camera; and perform the function for the user authentication on the basis of the obtained at least one image. Various other embodiments may be possible.