The present invention provides a heat-resistant alloy member which hardly causes external diffusion of Cr, an alloy member for a fuel cell, a collector member for a fuel cell, a cell stack, and a fuel cell apparatus.The surface of a collector base material 201 containing Cr is coated with a Cr diffusion preventing layer 203 made of an oxide containing Zn and Mn and a coating layer 202 made of an oxide containing Zn is formed on the surface of the Cr diffusion preventing layer 203. The coating layer 202 preferably contains at least one kind of Al and Fe as a trivalent or higher valent positive metal element.