The purpose of the present invention is to improve the efficiency of manufacturing laminated rings. The method for manufacturing laminated rings includes: a welding step for forming a cylindrical pipe by welding the end parts of a steel sheet to each other; a ring cutting step for cutting the pipe in a direction orthogonal to the axial center at prescribed widths and cutting out a plurality of rings (23); a polishing step for polishing the rings (23); a circumference adjusting step for adjusting the plurality of rings (23) such that each has a respective predetermined circumference; a nitriding step for nitriding processing of the plurality of rings (23); and an assembly step for forming laminated rings by combining the plurality of rings (23) so as to be laminated. After the rings (23) are cut from the pipe, the same are polished one at a time without changing the order, and in the nitriding process also, the nitriding process is performed while the rings (23) are set in a jig such that the order is maintained. In the assembly step, assembly is carried out such that the rings (23) that had been in adjacent positions in the pipe state form adjacent layers in laminated rings (12A, 12B).