The invention provides a metallic member used for fuel cell stack. A metallic conducting function member used for conducting electricity in a fuel cell stack comprises a conductive inorganic film on asurface of a metal base material. The inorganic film that is a thin film made of a conductive inorganic material includes a carbon-based conductive material dispersed at a weight ratio that is equalto or higher than 20%. Using this metallic conducting function member for a stack of fuel cells that is a stack of power generation cells each obtained by sandwiching an electrolyte membrane having proton conductivity with an anode electrode and a cathode electrode can lead to small contact resistance value and high corrosion resistance.