A portable communication device (100, 400, 500) comprising: a housing foldable with respect to a folding axis and including a first housing portion, a second housing portion, and a hinge cover located between at least a part of the first housing portion and at least a part of the second housing portion, the first housing portion including a first sidewall portion extended in parallel to the folding axis, a second sidewall portion extended from a first end of the first sidewall portion, perpendicularly to the folding axis, and a third sidewall portion extended from a second end of the first sidewall portion, perperpendicularly to the folding axis; a hinge module accommodated in the housing and connected to the first housing portion and the second housing portion; a flexible display accommodated in the first housing portion and the second housing portion; a battery accommodated in the first housing portion and having a first side surface directed toward the second sidewall portion and spaced from the second sidewall portion by a first distance and a second side surface directed toward the hinge cover and spaced from the hinge cover by a second distance smaller than the first distance; a first rigid printed circuit board, RPCB, (162, 462) accommodated in the first housing portion and including a first part located between the first side surface of the battery and the second sidewall portion and a second part extended from the first part and located between the second side surface of the battery and the hinge cover, the second part including a first surface directed toward the flexible display, a second surface directed in a direction opposite to the first surface of the second part, and a first connector located on the second surface of the second part; a second RPCB (164, 464) accommodated in the second housing portion and including a third part at least partially facing with the second part of the first RPCB in a folded state of the housing, the third part including a first surface directed toward the flexible display, a second surface directed in a direction opposite to the first surface of the third part; and a second connector located on the second surface of the third part; and a flexible printed circuit board, FPCB, at least partially disposed between the hinge cover and the flexible display, and connected to the first connector of the first RPCB and the second connector of the second RPCB, wherein the FPCB is extended in a first direction such that the FPCB surrounds the second surface of the second part of the first RPCB, a side surface between the first surface and the second surface of the second part, part-and a part of the first surface of the second part, and is connected to the first connector, and wherein the FPCB is extended in a second direction opposite to the first direction, and is connected to the second connector. a housing foldable with respect to a folding axis and including a first housing portion, a second housing portion, and a hinge cover located between at least a part of the first housing portion and at least a part of the second housing portion, the first housing portion including a first sidewall portion extended in parallel to the folding axis, a second sidewall portion extended from a first end of the first sidewall portion, perpendicularly to the folding axis, and a third sidewall portion extended from a second end of the first sidewall portion, perperpendicularly to the folding axis; a hinge module accommodated in the housing and connected to the first housing portion and the second housing portion; a flexible display accommodated in the first housing portion and the second housing portion; a battery accommodated in the first housing portion and having a first side surface directed toward the second sidewall portion and spaced from the second sidewall portion by a first distance and a second side surface directed toward the hinge cover and spaced from the hinge cover by a second distance smaller than the first distance; a first rigid printed circuit board, RPCB, (162, 462) accommodated in the first housing portion and including a first part located between the first side surface of the battery and the second sidewall portion and a second part extended from the first part and located between the second side surface of the battery and the hinge cover, the second part including a first surface directed toward the flexible display, a second surface directed in a direction opposite to the first surface of the second part, and a first connector located on the second surface of the second part; a second RPCB (164, 464) accommodated in the second housing portion and including a third part at least partially facing with the second part of the first RPCB in a folded state of the housing, the third part including a first surface directed toward the flexible display, a second surface directed in a direction opposite to the first surface of the third part; and a second connector located on the second surface of the third part; and a flexible printed circuit board, FPCB, at least partially disposed between the hinge cover and the flexible display, and connected to the first connector of the first RPCB and the second connector of the second RPCB, wherein the FPCB is extended in a first direction such that the FPCB surrounds the second surface of the second part of the first RPCB, a side surface between the first surface and the second surface of the second part, part-and a part of the first surface of the second part, and is connected to the first connector, and wherein the FPCB is extended in a second direction opposite to the first direction, and is connected to the second connector.