PROBLEM TO BE SOLVED: To precisely calculate a temperature of a deepest part of a measurement object.SOLUTION: A temperature measurement device includes: a measurement section measuring biological information； and a calculation processing section setting an apparent coefficient of thermal conductivity in calculation processing for calculating a temperature of a deepest part of a measurement object by using the apparent coefficient of thermal conductivity based on a result of measurement by the measurement section, executing the calculation processing, and calculating the temperature of the deepest part.SELECTED DRAWING: Figure 10【課題】測定対象の深部温度を精度よく算出すること。【解決手段】生体情報を測定する測定部と、みかけの熱伝導率を用いて測定対象の深部温度を算出する算出処理における前記みかけの熱伝導率を、前記測定部の測定結果に基づいて設定し、前記算出処理を実行して前記深部温度を算出する演算処理部と、を備えた温度測定装置である。【選択図】図１０
