A method for providing a preview image, and an electronic device for supporting same are disclosed. The electronic device can include a housing, a camera, a display, at least one processor, and a memory. If the extension of the display from the housing is detected, the at least one processor can identify the distance between the center position of the extended display and the camera, acquire a first image including a viewing area of the camera, correct the first image on the basis of the identified distance to acquire a second image, and display a preview image on the display on the basis of the second image. Other various embodiments identified through the present document are possible.