An electronic device comprising: a first housing; a second housing; a hinge assembly coupling the first housing and the second housing so that the second housing is rotatable with respect to the first housing; and a flexible display accommodated in the first housing and the second housing, wherein the hinge assembly comprises: a first bracket coupled with at least one region of the first housing and configured to rotate about a first rotation axis; a second bracket coupled with at least one region of the second housing and configured to rotate about a second rotation axis; a fixing bracket supporting the first bracket and the second bracket; a first shaft rotating about a third rotation axis different from the first rotation axis; a second shaft adjacent to the first shaft to rotate about a fourth rotation axis different from the second rotation axis; a first arm portion coupled with the first shaft to rotate about the third rotation axis, and having one side coupled with at least one region of the first bracket; a second arm portion coupled with the second shaft to rotate about the fourth rotation axis, and having one side coupled to at least one region of the second bracket; and a support portion at least partially disposed between the first arm portion and the second arm portion, characterised in that the support portion supports at least one region of the flexible display when the electronic device is in an unfolded state, and is spaced apart from the flexible display as the electronic device changes from the unfolded state to a folded state. a first housing; a second housing; a hinge assembly coupling the first housing and the second housing so that the second housing is rotatable with respect to the first housing; and a flexible display accommodated in the first housing and the second housing, wherein the hinge assembly comprises: a first bracket coupled with at least one region of the first housing and configured to rotate about a first rotation axis; a second bracket coupled with at least one region of the second housing and configured to rotate about a second rotation axis; a fixing bracket supporting the first bracket and the second bracket; a first shaft rotating about a third rotation axis different from the first rotation axis; a second shaft adjacent to the first shaft to rotate about a fourth rotation axis different from the second rotation axis; a first arm portion coupled with the first shaft to rotate about the third rotation axis, and having one side coupled with at least one region of the first bracket; a second arm portion coupled with the second shaft to rotate about the fourth rotation axis, and having one side coupled to at least one region of the second bracket; and a support portion at least partially disposed between the first arm portion and the second arm portion, characterised in that the support portion supports at least one region of the flexible display when the electronic device is in an unfolded state, and is spaced apart from the flexible display as the electronic device changes from the unfolded state to a folded state. a first bracket coupled with at least one region of the first housing and configured to rotate about a first rotation axis; a second bracket coupled with at least one region of the second housing and configured to rotate about a second rotation axis; a fixing bracket supporting the first bracket and the second bracket; a first shaft rotating about a third rotation axis different from the first rotation axis; a second shaft adjacent to the first shaft to rotate about a fourth rotation axis different from the second rotation axis; a first arm portion coupled with the first shaft to rotate about the third rotation axis, and having one side coupled with at least one region of the first bracket; a second arm portion coupled with the second shaft to rotate about the fourth rotation axis, and having one side coupled to at least one region of the second bracket; and a support portion at least partially disposed between the first arm portion and the second arm portion, characterised in that the support portion supports at least one region of the flexible display when the electronic device is in an unfolded state, and is spaced apart from the flexible display as the electronic device changes from the unfolded state to a folded state.