An electronic device includes: a first housing; a second housing connected to the first housing and being partially moveable in a moving direction; a display supported by the first housing and the second housing and configured to change between a first state and a second state; and a flexible printed circuit board having a length in the moving direction which changes based one the movement of the first housing and the second housing, the flexible printed circuit board includes: a first wire including a first signal circuit formed along a first length direction; a second wire including a second signal circuit formed along a second length direction; a bonding sheet configured to bond the first wire and the second wire along a bonding area; and one or more signal vias penetrating the first wire and the second wire and electrically connecting the first signal circuit to the second signal circuit.