The shape of a press-formed product press-formed from a plate-like material is made as a task to suppress the fall or bounce of the end of the press-formed product due to springback or torsion of the press-formed product, and to suppress the shape defect of the press-formed product due to springback. When designing, the radius of curvature (R1) of the concave bend portion and the radius of curvature (R2) of the convex bend portion in the concave and convex bend shape in which the additional shape arranged in the press-formed product has a continuous concave and convex bend It is characterized by doing the same.
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