To provide a manufacturing method of a separator for a solid polymer fuel cell with high durability which can be stably molded without generating cracks or breaks, not generating a warp or undulation after molding, and applicable to the separator for the solid polymer fuel cell, and to provide a manufacturing device for the same.

On the manufacturing method of the separator for the solid polymer fuel cell having a flat part at a peripheral part, and having indented parts serving as the gas passages at the part excluding the flat part, the separator is manufactured by applying a curving process while winding a plate on an upper roll or a lower roll, by using the pair of upper and lower rolls on which, an indentation process having a shape similar with the shape of the indentation on the separator is applied.

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