A manufacturing apparatus of an absorbent article, the manufacturing apparatus comprising: a swinging guide mechanism comprising an arm member for guiding an elastic member and including a feeding portion from which the elastic member is feedable, the swinging guide mechanism comprising a motor having a rotational shaft at a base of the arm member and configured to swing the arm member in a cross direction at a predetermined cycle, a controller configured to control the motor, the feeding portion is movable alternately in a first direction (Da) and a second direction (Db) for bringing the elastic member into contact with a web and for arranging the elastic member in a predetermined waveform, the web being conveyable in a predetermined direction in a state in which components forming one part of the absorbent article are sequentially arranged, the first direction (Da) directing from a center portion of the web to a first end portion in the cross direction crossing the predetermined direction, and the second direction (Db) directing from the center portion to a second end portion that is an end portion opposite to the first end portion, characterised in that the controller is configured to control the motor which is a servomotor so that a distance between the feeding portion and a nip point (N1, N2) is largest when the nip point (N1, N2) at which the elastic member comes in contact with the web exceeds a position in the predetermined waveform where an angle (φ) between the predetermined direction and a tangent to the predetermined waveform is largest, and in that the controller is further configured to control the motor so that: when moving in the first direction (Da), the feeding portion is arranged in a marginal position located closer to the first end portion than the tangent to the predetermined waveform at the nip point, when moving along the second direction (Db), the feeding portion is arranged in a marginal position located closer to the second end portion than the tangent to the predetermined waveform at the nip point, and a distance between the position (P1, P2) on the tangent to the predetermined waveform at the nip point (N1, N2) and the marginal position (m1, m2) of the nip point becomes gradually larger as the nip point (N1, N2) moves from a position where the tangent is parallel to the predetermined direction, to the position where the angle (φ) between the tangent and the predetermined direction is largest. a swinging guide mechanism comprising an arm member for guiding an elastic member and including a feeding portion from which the elastic member is feedable, the swinging guide mechanism comprising a motor having a rotational shaft at a base of the arm member and configured to swing the arm member in a cross direction at a predetermined cycle, a controller configured to control the motor, the feeding portion is movable alternately in a first direction (Da) and a second direction (Db) for bringing the elastic member into contact with a web and for arranging the elastic member in a predetermined waveform, the web being conveyable in a predetermined direction in a state in which components forming one part of the absorbent article are sequentially arranged, the first direction (Da) directing from a center portion of the web to a first end portion in the cross direction crossing the predetermined direction, and the second direction (Db) directing from the center portion to a second end portion that is an end portion opposite to the first end portion, characterised in that the controller is configured to control the motor which is a servomotor so that a distance between the feeding portion and a nip point (N1, N2) is largest when the nip point (N1, N2) at which the elastic member comes in contact with the web exceeds a position in the predetermined waveform where an angle (φ) between the predetermined direction and a tangent to the predetermined waveform is largest, and in that the controller is further configured to control the motor so that: when moving in the first direction (Da), the feeding portion is arranged in a marginal position located closer to the first end portion than the tangent to the predetermined waveform at the nip point, when moving along the second direction (Db), the feeding portion is arranged in a marginal position located closer to the second end portion than the tangent to the predetermined waveform at the nip point, and a distance between the position (P1, P2) on the tangent to the predetermined waveform at the nip point (N1, N2) and the marginal position (m1, m2) of the nip point becomes gradually larger as the nip point (N1, N2) moves from a position where the tangent is parallel to the predetermined direction, to the position where the angle (φ) between the tangent and the predetermined direction is largest. when moving in the first direction (Da), the feeding portion is arranged in a marginal position located closer to the first end portion than the tangent to the predetermined waveform at the nip point, when moving along the second direction (Db), the feeding portion is arranged in a marginal position located closer to the second end portion than the tangent to the predetermined waveform at the nip point, and a distance between the position (P1, P2) on the tangent to the predetermined waveform at the nip point (N1, N2) and the marginal position (m1, m2) of the nip point becomes gradually larger as the nip point (N1, N2) moves from a position where the tangent is parallel to the predetermined direction, to the position where the angle (φ) between the tangent and the predetermined direction is largest.