A fixing device (30) has a fixing member (30) adapted to be heated by induction heating based on a magnetic field from an induction coil (34). A pressing member (40) is disposed in contact with the fixing member (30) to define therebetween a nip zone (N) for passing a sheet (P) therethrough. The fixing member includes a heating layer (32). The heating layer (32) has a temperature-sensitive metal layer (321) formed on the side of the induction coil (34), and a nonmagnetic-metal layer (322) laminated onto the temperature-sensitive metal layer (321). The nonmagnetic metal layer (321) is made of a metal (copper (Cu)) having a specific resistance less than that of aluminum, and formed to have a thickness (30 .mu.m) allowing the nonmagnetic metal layer to be substantially free from a temperature rise due to the induction heating.