It is aimed to provide a device for manufacturing an elastic laminate which device can stably position an elastic member with respect to both sheets. A drive mechanism includes a timing belt having a guide plate fixed thereto, a plurality of timing pulleys configured such that the timing belt is provided thereon along an annular path including a travel path, a motor configured to drive the timing pulleys to be successively rotated in forward and reverse directions to reciprocate the guide plate along the travel path, and a slider and a rail configured to permit a movement of the guide plate relative to both nip rolls along the travel path and regulate a movement of the guide plate relative to the both nip rolls in a direction orthogonal to the travel path.
