An electronic device , comprising: a first housing ; a second housing ; a hinge structure connecting the first housing and the second housing in a foldable manner; a flexible display that comprises a first region (h1) corresponding to the first housing , a second region (h2) corresponding to the second housing and a folding region (h3) corresponding to the hinge structure ; a first protection cover disposed on the first housing to cover a periphery of the first region (h1) of the flexible display ; a second protection cover disposed on the second housing to cover a periphery of the second region (h2) of the flexible display ; and a protection structure disposed on the hinge structure , wherein the protection structure comprises: a blocking member to cover the periphery of the flexible display in the folding region (h3) and to bend corresponding to the foldable manner; and at least one protective cap to support the blocking member , covering the periphery of the flexible display in the folding region (h3), the at least one protective cap comprising: a base fixed to the hinge structure in the folding region (h3); a protrusion extending upward from the base and having a first width (w1); and a support part extending from the protrusion toward the flexible display , wherein the support part supports at least a portion of the blocking member and has a second width (w2) less than the first width (w1). a first housing ; a second housing ; a hinge structure connecting the first housing and the second housing in a foldable manner; a flexible display that comprises a first region (h1) corresponding to the first housing , a second region (h2) corresponding to the second housing and a folding region (h3) corresponding to the hinge structure ; a first protection cover disposed on the first housing to cover a periphery of the first region (h1) of the flexible display ; a second protection cover disposed on the second housing to cover a periphery of the second region (h2) of the flexible display ; and a protection structure disposed on the hinge structure , wherein the protection structure comprises: a blocking member to cover the periphery of the flexible display in the folding region (h3) and to bend corresponding to the foldable manner; and at least one protective cap to support the blocking member , covering the periphery of the flexible display in the folding region (h3), the at least one protective cap comprising: a base fixed to the hinge structure in the folding region (h3); a protrusion extending upward from the base and having a first width (w1); and a support part extending from the protrusion toward the flexible display , wherein the support part supports at least a portion of the blocking member and has a second width (w2) less than the first width (w1). a blocking member to cover the periphery of the flexible display in the folding region (h3) and to bend corresponding to the foldable manner; and at least one protective cap to support the blocking member , covering the periphery of the flexible display in the folding region (h3), the at least one protective cap comprising: a base fixed to the hinge structure in the folding region (h3); a protrusion extending upward from the base and having a first width (w1); and a support part extending from the protrusion toward the flexible display , wherein the support part supports at least a portion of the blocking member and has a second width (w2) less than the first width (w1). a base fixed to the hinge structure in the folding region (h3); a protrusion extending upward from the base and having a first width (w1); and a support part extending from the protrusion toward the flexible display , wherein the support part supports at least a portion of the blocking member and has a second width (w2) less than the first width (w1). <EOS>