Abstract: A cover for a foldable electronic device is provided. The cover includes a first cover member and a second cover member, wherein the first cover member and the second cover member are spaced a certain interval from each other and are configured to be folded or unfolded with a folding axis interposed therebetween, an inner cover includes a first area coupled to a first inner surface of the first cover member, a second area coupled to a second inner surface of the second cover member, and a third area connecting the first area and the second area and extending across the certain interval, and a ring coupled to the third area of the inner cover.