An electronic device is provided, which includes a first housing including at least one first electronic component, a second housing including at least one second electronic component, a hinge housing disposed between the first housing and the second housing, a hinge assembly assembled to the hinge housing to rotatably couple the first housing and the second housing, a flexible printed circuit board electrically coupling the first electronic component and the second electronic component via the hinge housing, and a flexible display, wherein the hinge assembly comprises a support portion located between the flexible printed circuit board and the flexible display, wherein, as the electronic device rotates from folded to 180-degree unfolded, the support portion moves into the flexible display, and wherein, as the electronic device rotates from 180-degree unfolded to folded, the support portion moves into the flexible printed circuit board to be spaced apart from the flexible display.