The present invention relates to a hyperthermia mask used in the field of medical appliances. The hyperthermia mask of the present invention comprises a mask surface body and a tensioning belt, the mask surface body is made of phase change fibers or the mask surface body is filled with the phase change fibers the phase change fibers are composed of hollow fibers and phase change materials filled into the hollow fibers and the phase change materials have a phase change temperature of 40° C.-55° C. The hyperthermia mask of the present invention is prepared based on phase change heat storage, is convenient to use and has a good hyperthermia effect.