Various embodiments of the present invention relate to an electronic device and, more specifically, to a rotatable member and an electronic device comprising same. Various embodiments of the present invention may provide a structure for limiting movement of a rotatable member, comprising: a housing; an edge part disposed on one surface of the housing; a wheel structure which is spaced apart from the edge part on the one surface of the housing by a predetermined distance and is rotatably installed along the edge part; and a ring structure, disposed in a space formed between the wheel structure and the edge part, for coupling the wheel structure and the edge part to each other, wherein at least a part of the ring structure is supported by the wheel structure so that the horizontal movement of the ring structure is limited, and at least a part of the ring structure has a hook and is supported by the edge part so that the wheel structure is pressed toward the housing due to the bending of the ring structure.