To provide an induction heat emitting roller apparatus that can simply mount and replace temperature sensor for measuring temperature of induction coil.

A leading end of a guide pipe is fixed adjacent to induction heat emitting device, out or end of the guide pipe extends out of roller shell. The temperature sensor is removably inserted into a leading end from the outer end of the guide pipe and a wiring of the temperature sensor is extruded from the outer end to outside of the guide pipe. For replacing and mounting the temperature sensor, the temperature sensor is removed from the guide pipe by pulling out end of the wiring. For mounting new temperature sengor, it is inserted into an inner of the guide pipe from the out end.