Secondary multi-time attaching method for FPC auxiliary material

The invention discloses a secondary multi-time attaching method for an FPC auxiliary material. The method comprises the following steps of performing secondary design and manufacturing on a makeup plate in advance to form the same-plate double-group auxiliary materials to be laminated corresponding to a attaching position on an FPC, which needs to be laminated with the auxiliary materials; designing and manufacturing a protective paper with tearing cracks on the surface of the makeup plate in a laminated manner; when the auxiliary materials are laminated, tearing off the protective paper on the surface of one group of the auxiliary materials through the tearing cracks, and attaching the group of the auxiliary materials without the protective paper to one FPC in a trepanning manner; and then tearing off the protective paper on the surface of the other group of auxiliary materials on the makeup plate, and attaching the other group of auxiliary materials after the protective paper is torn off to the other FPC in