A wiring structure of a wire harness of an automobile roof portion comprising: an adhesive member laid on a surface of a roof lining of an automobile, a wire harness configured to be wired by being fixed to the adhesive member, wherein the wire harness comprises a bent portion (W2, W4) as a restraint portion which comprises two belt-shaped tapes (11, 12), in which both side edges (11a, 12a) in the width direction are fixed to each other, and an adhesive surface provided on an inner surface of at least one of the two tapes (11, 12), on at least a part of the bent portion (W2, W4) which is wired by bending a plurality of electric wires (Wa) of the wiring path of the wire harness, the plurality of electric wires (Wa) are sandwiched between the two belt-shaped tapes (11, 12) are arranged side by side in the width direction of the tapes (11, 12), and are attached to the adhesive surface provided on an inner surface of at least one of the two tapes (11, 12), so that the restraint portion holds the bundle of the electric wires (Wa) in a flat shape, a portion excluding the restraint portion is a non-restraint portion in which the plurality of electric wires (Wa) are unrestrained, and an outer surface of one of the two tapes (11, 12) in the restraint portion is attached to the adhesive member, whereby the wire harness is fixed to the surface of the roof lining. an adhesive member laid on a surface of a roof lining of an automobile, a wire harness configured to be wired by being fixed to the adhesive member, wherein the wire harness comprises a bent portion (W2, W4) as a restraint portion which comprises two belt-shaped tapes (11, 12), in which both side edges (11a, 12a) in the width direction are fixed to each other, and an adhesive surface provided on an inner surface of at least one of the two tapes (11, 12), on at least a part of the bent portion (W2, W4) which is wired by bending a plurality of electric wires (Wa) of the wiring path of the wire harness, the plurality of electric wires (Wa) are sandwiched between the two belt-shaped tapes (11, 12) are arranged side by side in the width direction of the tapes (11, 12), and are attached to the adhesive surface provided on an inner surface of at least one of the two tapes (11, 12), so that the restraint portion holds the bundle of the electric wires (Wa) in a flat shape, a portion excluding the restraint portion is a non-restraint portion in which the plurality of electric wires (Wa) are unrestrained, and an outer surface of one of the two tapes (11, 12) in the restraint portion is attached to the adhesive member, whereby the wire harness is fixed to the surface of the roof lining. the wire harness comprises a bent portion (W2, W4) as a restraint portion which comprises two belt-shaped tapes (11, 12), in which both side edges (11a, 12a) in the width direction are fixed to each other, and an adhesive surface provided on an inner surface of at least one of the two tapes (11, 12), on at least a part of the bent portion (W2, W4) which is wired by bending a plurality of electric wires (Wa) of the wiring path of the wire harness, the plurality of electric wires (Wa) are sandwiched between the two belt-shaped tapes (11, 12) are arranged side by side in the width direction of the tapes (11, 12), and are attached to the adhesive surface provided on an inner surface of at least one of the two tapes (11, 12), so that the restraint portion holds the bundle of the electric wires (Wa) in a flat shape, a portion excluding the restraint portion is a non-restraint portion in which the plurality of electric wires (Wa) are unrestrained, and an outer surface of one of the two tapes (11, 12) in the restraint portion is attached to the adhesive member, whereby the wire harness is fixed to the surface of the roof lining.