An image photographing method is provided, including: based on a photographing instruction, selecting at least one focus in a quadrangular image, and photographing at least one initial image based on the at least one focus, where the quadrangular image includes a first pair of opposite sides and a second pair of opposite sides, an included angle between the opposite sides of the first pair of opposite sides is less than that of the second pair of opposite sides, a first side is a shorter side of the first pair of opposite sides, the at least one focus includes a first focus, and the first focus is in the quadrangular image and in a partial region including the first side; adjusting a quadrangular image to a rectangular image; and obtaining a final image and outputting the final image.