PROBLEM TO BE SOLVED: To provide a temperature measuring device which is simply-structured and capable of measuring accurately both deep part temperature and ambient temperature.SOLUTION: Provided is a temperature measuring device which comprises: first surface temperature measuring means 20A for measuring as a first surface temperature； first reference temperature measuring means 24A for measuring as a first reference temperature； first ambient temperature measuring means 25A for measuring as a first ambient temperature； second surface temperature measuring means 20B for measuring as a second surface temperature； second reference temperature measuring means 24B for measuring as a second reference temperature； second ambient temperature measuring means 25B for measuring as a second ambient temperature； deep part temperature calculation means 42 for calculating the deep part temperature of a measuring object on the basis of the first surface temperature, the first reference temperature, the second surface temperature, and the second reference temperature； and ambient temperature calculation means 43 for calculating an ambient temperature on the basis of the first surface temperature, the first reference temperature, the second surface temperature, the second reference temperature, the first ambient temperature, and the second ambient temperature.【課題】ひとつの簡単な構造の装置で、正確に深部温度と外気温度とを測定できる温度測定装置を提供する。【解決手段】温度測定装置は、第１表面温度として測定する第１表面温度測定手段２０Ａと、第１参照温度として測定する第１参照温度測定手段２４Ａと、第１外気温度として測定する第１外気温度測定手段２５Ａと、第２表面温度を測定する第２表面温度測定手段２０Ｂと、第２参照温度として測定する第２参照温度測定手段２４Ｂと、第２外気温度として測定する第２外気温度測定手段２５Ｂと、第１表面温度、第１参照温度、第２表面温度、及び第２参照温度値を用いて被測定対象の深部温度を演算する深部温度演算手段４２と、第１表面温度、第１参照温度、第２表面温度、第２参照温度、第１外気温度、及び第２外気温度値を用いて外気の外気温度を演算する外気温度演算手段４３と、を含む。【選択図】図１
