According to certain embodiments, an electronic device may include a first housing, a second housing including at least one through-hole and connected to the first housing through a hinge device, a display panel disposed to be supported by the first housing and the second housing, a bending part extending outward from the display panel and including a control circuit, a cover member disposed on at least a portion of the bending part so as to cover at least a part of the control circuit and including a conductive layer, a first waterproof member disposed between the display panel and the first housing so as to surround at least a portion of the bending part, a second waterproof member disposed between the bending part and the first housing, and a third waterproof member filled through the through-hole such that the first waterproof member is connected to the second waterproof member, wherein the cover member includes an exposed part in which at least a part of the conductive layer is exposed, and the exposed part is disposed to at least partially overlap the through-hole.