PROBLEM TO BE SOLVED: To provide a technology to evaluate reliability of biological data.SOLUTION: A biological data measuring apparatus includes: a first measuring unit for measuring first biological data on an object person; a second measuring unit for measuring second biological data on the object person in a predetermined period including a measurement time and date of the first biological data; a first determination unit for determining whether a mounting state of the second measuring unit by the object person is appropriate or inappropriate on the basis of the first biological data; and a second determination unit for determining whether the reliability of the second biological data is high or low according to a result of the determination indicating whether the mounting state is appropriate or inappropriate.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】生体データの信頼性を評価する技術を提供する。【解決手段】生体データ測定装置は、対象者の第1の生体データを測定する第1の測定部と、前記第1の生体データの測定日時を含む所定期間内の前記対象者の第2の生体データを測定する第2の測定部と、前記第1の生体データに基づいて、前記対象者による前記第2の測定部の装着状態が適切か不適切かを判断する第1の判断部と、前記装着状態が適切または不適切の何れかを示す判断結果に応じて、前記第2の生体データの信頼性が高いか低いかを判断する第2の判断部とを備える。【選択図】図1