A work quality of a worker is appropriately estimated. SOLUTION: The estimation device 1 performs a work based on an acquisition unit 131 that acquires biometric information of a worker and work biometric information acquired by the acquisition unit 131 during a work period in which the worker is performing a predetermined work. The estimation unit 134 estimates the work quality of the worker, and the output unit 135 outputs the information about the work quality of the worker estimated by the estimation unit 134. The estimation unit 134 estimates the work quality of the worker based on the relationship between the standby biometric information acquired by the acquisition unit 131 during the standby period in which the worker is not performing a predetermined work and the biological biometric information during work. Good. [Selection diagram] Figure 2【課題】作業者の作業品質を適切に推定する。【解決手段】推定装置１は、作業者の生体情報を取得する取得部１３１と、作業者が所定の作業を行っている作業期間に取得部１３１が取得した作業時生体情報に基づいて、作業者の作業品質を推定する推定部１３４と、推定部１３４が推定した作業者の作業品質に関する情報を出力する出力部１３５と、を有する。推定部１３４は、作業者が所定の作業を行っていない待機期間に取得部１３１が取得した待機時生体情報と、作業時生体情報との関係に基づいて、作業者の作業品質を推定してもよい。【選択図】図２
