To provide a manufacturing method of a press molding which a boundary portion between an internal peripheral face of a cylinder part and a flat plate part orthogonally approximates without a causing a defect for lowering mechanical rigidity, in the metal-made press molding exhibiting a shape in which the cylinder part is connected to an edge of a circular hole which is formed at the flat plate part.SOLUTION: A punch 23 is made to progress to a side opposite to a direction in which a cylinder part 12 is protruded with respect to a plate body 10b having a flat plate part 11b in which a circular hole 15 is protrusively formed, an inclined edge 16 inclined so as to be protrusive as approximating a center axis C of the circular hole is formed by pushing and bending a peripheral edge of the circular hole, and after that, a punch 24 having a column part 24a having an outside diameter equal to an inside diameter of the cylinder part which should be formed, and a tapered part 24b which is contracted in a diameter toward a tip is made to progress to the plate body from a direction in which the inclined edge is protruded, and pushed and bent up to an opposite side, thus forming the cylinder part.SELECTED DRAWING: Figure 2
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