A separator for fuel cell having a coating layer of gold on the surface of a metal plate and formed by plastic working wherein a relation r+d/r<=1.025 50microm<=r<=100microm is satisfied assuming the minimum bending R at a plastic working part is r microm, and the thickness of the gold coating layer is d microm. In such a separator for fuel cell, stripping or cracking is not generated in the gold coating layer after plastic working and corrosion resistance and durability can be enhanced remarkably.
