A material supply device (3) for supplying the succeeding material to the processing device (3) related to the absorbent article by joining it to the preceding material (5 a) as the succeeding material (5 b) 2), which is provided with a pair of rotating shafts (32, 33) for supporting the preceding material coil (6a) and the following material coil (6b) in a cantilever manner and can rotate with a pair of rotating shafts A support unit supported by the support unit and supporting the end portion of the rotation shaft supporting the following material coil at the side opposite to the pivot member side, The support unit has a support unit (50) movable between a support position (P1) for supporting the end portion of the rotation shaft and a retreat position (P2) away from the support position , And the supporting part is located at the retracted position when turning the turning member.先行の資材(5a)に、後行の資材(5b)として接合することによって、先行の資材に連続させて後行の資材を吸収性物品に係る加工装置(3)に供給する資材供給装置(2)であって、先行の資材コイル(6a)と後行の資材コイル(6b)をそれぞれ片持ち状に支持する一対の回転軸(32,33)が設けられ、一対の回転軸と共に旋回可能に支持された旋回部材(30)と、接合ユニット(23)と、後行の資材コイルを支持する回転軸の端部のうち旋回部材側とは反対側の端部を支持する支持部(51)を備え、支持部が、回転軸の端部を支持する支持位置(P1)と、支持位置から離れた退避位置(P2)との間を、移動可能な支持ユニット(50)と、を有し、旋回部材の旋回時に、支持部が退避位置に位置すること。