An object of the present invention is to provide a method for separating a pulp baler's annealing wire that can reduce the take-up load. A method for separating a core wire of a pulp bale, which separates a core wire from a pulp bale 1, comprises: A first step of separating the core wire of the pulp bale 1 from the pulp bale 1, 11, 12, 12, 12, 12, 12, 12, 12, 12, the cross-crossing portion of the pulp baler 1 is a in plan view, Detects the first annealing wire 11 on the crossing site a among the second annealing wire 11, 11, 12, 12, and 12; cuts the first annealing wire 11 with a cutter 6; holds the cut first annealing wire 11 and moves it to peel off from the pulp baler 1; After movement, the cut first annealing wire 11 is wound up and the first...