An electronic device comprising: a flexible display; a first housing including a first surface facing in a first direction and a second surface facing in a second direction opposite to the first direction, wherein at least one portion of the flexible display is disposed on the first surface; a first hinge connected to a side surface of the first housing is adapted to fold in a first rotation direction (D 1), and unfold in a second rotation direction; a second housing connected to the first hinge and including a third surface facing in a third direction and a fourth surface facing in a fourth direction, wherein at least one portion of the flexible display is disposed on the third surface; a second hinge connected to a side surface of the second housing is adapted to fold in a third rotation direction, and unfold in a fourth rotation direction; a third housing connected to the second hinge and including a fifth surface facing in a fifth direction and a sixth surface facing in a sixth direction, wherein at least one portion of the flexible display is disposed on the fifth surface; a circuit board located inside the first housing and including a communication circuit; at least one antenna located inside the third housing; and a connection member electrically connecting the circuit board to the antenna, wherein the connection member includes: a first connection member located at a position corresponding to the first hinge and having a first physical property, and a second connection member located at a position corresponding to the second hinge and having a second physical property, wherein the first connection member and the second connection member include a printed circuit board, a flexible printed circuit board (FPCB), a flat ribbon cable, or a coaxial cable. a flexible display; a first housing including a first surface facing in a first direction and a second surface facing in a second direction opposite to the first direction, wherein at least one portion of the flexible display is disposed on the first surface; a first hinge connected to a side surface of the first housing is adapted to fold in a first rotation direction (D 1), and unfold in a second rotation direction; a second housing connected to the first hinge and including a third surface facing in a third direction and a fourth surface facing in a fourth direction, wherein at least one portion of the flexible display is disposed on the third surface; a second hinge connected to a side surface of the second housing is adapted to fold in a third rotation direction, and unfold in a fourth rotation direction; a third housing connected to the second hinge and including a fifth surface facing in a fifth direction and a sixth surface facing in a sixth direction, wherein at least one portion of the flexible display is disposed on the fifth surface; a circuit board located inside the first housing and including a communication circuit; at least one antenna located inside the third housing; and a connection member electrically connecting the circuit board to the antenna, wherein the connection member includes: a first connection member located at a position corresponding to the first hinge and having a first physical property, and a second connection member located at a position corresponding to the second hinge and having a second physical property, wherein the first connection member and the second connection member include a printed circuit board, a flexible printed circuit board (FPCB), a flat ribbon cable, or a coaxial cable. a first connection member located at a position corresponding to the first hinge and having a first physical property, and a second connection member located at a position corresponding to the second hinge and having a second physical property, wherein the first connection member and the second connection member include a printed circuit board, a flexible printed circuit board (FPCB), a flat ribbon cable, or a coaxial cable.