The invention relates to the field of papermaking, in particular to a making method of anti-cracking decoration base paper. The anti-cracking decoration base paper comprises a first half part and a second half part, wherein the first half part is at least prepared from wood pulp, cotton pulp, titanium dioxide, kaolin, wet-strength resin and nylon fibers through mixing, and the second half part is at least prepared from wood pulp, cotton pulp, titanium dioxide, kaolin, wet-strength resin, nylon fibers and metal wires through mixing; the decoration base paper is prepared from materials of the first half part and the second half part through feeding, pulping, deslagging, sizing, papermaking, pressing, drying, calendaring and other steps. Compared with the prior art, the making method has the advantages that the strength of the whole paper is improved by adding the nylon fibers and the metal wires into the pulp, the expansion rate of the decoration base paper during transferring and dipping is guaranteed, the decoration base paper cannot deform or crack after being used for a long time, and meanwhile, other performance of the decoration paper isn't affected.