<p>This study adopts an elastic inherent-strain finite element method to address the deformation prediction for saddle plates with multiple heating lines during induction heating. First, a thermal–elastic–plastic finite element model is established to simulate the forming process of a saddle plate with multiple heating lines, from which inherent strain values for each heating path are derived. These actual inherent strain values are then applied as loading conditions in an elastic inherent strain finite element analysis to predict the deformation of a large saddle plate during induction heating. Experimental and numerical comparisons confirm that the proposed approach, incorporating inherent strains specific to each heating line, significantly increases the deformation prediction accuracy over conventional methods that use either averaged or single heating line inherent strain values.</p>