A contact-type infrared temperature sensor 1 for high temperature measurement is provided with: a heat-resistant cylindrical member 2, having a cylindrical shape with one end as a closed section 21 and the other end as an open section 22; an infrared temperature detecting member 4, disposed facing and spaced from the closed section 21, and including no infrared filter; and an optical function section 33, having an infrared light inlet 31 disposed facing and spaced from the closed section 21 by a predetermined dimension, restricting infrared light radiated from the region spaced between the temperature-sensitive section and the infrared light inlet by the predetermined dimension to a range of the region by the infrared light inlet 31 and guiding the infrared light to the infrared temperature detecting member 4.