To provide a magnetic temperature adjusting device with a small cogging torque.

The magnetic temperature adjusting device includes: a rotation driving part; a rotor which is rotatably connected to the rotation driving part through the shaft, and has two or more magnetic poles; a first magnetic working materials which is filled in two or more cases oppositely arranged with the rotor through a space, and are changed in temperature by the change of a magnetic field applied thereon; and a magnetic auxiliary member arranged between the cases in which the first magnetism working material is filled.