An electronic device (101, 200, 400) comprising: a first housing (210, 421); a second housing (220, 422); a hinge device (320, 431) configured to foldably interconnect the first housing (210, 421) and the second housing (220, 422) with a folding axis extending in a first direction; a hinge housing (310, 430) configured to accommodate at least a portion of the hinge device (320, 431) and disposed between the first housing (210, 421) and the second housing (220, 422); a first electrical object disposed in the first housing (210, 421); a second electrical object disposed in the second housing (220, 422); and a connection assembly (500, 600) configured to interconnect the first electrical object and the second electrical object, the connection assembly (500, 600) includes: a connection member (510, 610) at least partially disposed in the hinge housing (310, 430), configured to electrically interconnect the first electrical object and the second electrical object, and including a flexible material to be at least partially deformable, a support unit (520, 620) coupled to the connection member (510, 610) and characterized in that a sliding connection unit (630, 650) configured to connect the support unit (520, 620) to each of the first housing (210, 421) and the second housing (220, 422) to be slidable in a second direction perpendicular to the first direction. a first housing (210, 421); a second housing (220, 422); a hinge device (320, 431) configured to foldably interconnect the first housing (210, 421) and the second housing (220, 422) with a folding axis extending in a first direction; a hinge housing (310, 430) configured to accommodate at least a portion of the hinge device (320, 431) and disposed between the first housing (210, 421) and the second housing (220, 422); a first electrical object disposed in the first housing (210, 421); a second electrical object disposed in the second housing (220, 422); and a connection assembly (500, 600) configured to interconnect the first electrical object and the second electrical object, the connection assembly (500, 600) includes: a connection member (510, 610) at least partially disposed in the hinge housing (310, 430), configured to electrically interconnect the first electrical object and the second electrical object, and including a flexible material to be at least partially deformable, a support unit (520, 620) coupled to the connection member (510, 610) and characterized in that a sliding connection unit (630, 650) configured to connect the support unit (520, 620) to each of the first housing (210, 421) and the second housing (220, 422) to be slidable in a second direction perpendicular to the first direction. a connection member (510, 610) at least partially disposed in the hinge housing (310, 430), configured to electrically interconnect the first electrical object and the second electrical object, and including a flexible material to be at least partially deformable, a support unit (520, 620) coupled to the connection member (510, 610) and characterized in that a sliding connection unit (630, 650) configured to connect the support unit (520, 620) to each of the first housing (210, 421) and the second housing (220, 422) to be slidable in a second direction perpendicular to the first direction.