An electronic device may include a hinge structure and a housing connected to the hinge structure. The hinge structure may include a shaft member and an arm structure connected to the shaft member and the housing such that the housing is rotatable. A guide hole, which extends in a direction substantially perpendicular to the rotation axis of the housing, may be formed in the housing. The arm structure may include a protruding portion accommodated in the guide hole. The protruding portion may slidably move inside the guide hole in accordance with the rotation of the housing. Another embodiment identified through the specification is possible.