The digestion efficient measurement equipment which relates to this invention, the container for measurement the tank where the churning liquid which is supplied to (2) is accommodated (3), the said tank (3) the heater and the container for measurement which heat the churning liquid inside (2) the churning device which inside food fragment and when the churning liquid is accommodated agitates the said food fragment in the churning liquid, the density measurement equipment which measures the density of the component of the food which from the surface of food fragment is liquated in the churning liquid has (5), and the control control equipment. The said control control equipment, as the above-mentioned heater, the churning device and the density measurement equipment (5) operation is controlled, guides digestion efficient appraisal value the density measurement equipment (5) on the basis of the measurement result.本発明に係る咀嚼能率測定装置は、測定用容器(2)に供給する攪拌液が収容されたタンク(3)、該タンク(3)内の攪拌液を加熱するヒータ、測定用容器(2)内に食品咬断片及び攪拌液を収容した状態で該食品咬断片を攪拌液中で攪拌する攪拌装置、食品咬断片の表面から攪拌液中に溶出した食品の含有成分の濃度を測定する濃度測定器(5)、及び制御装置を具えている。該制御装置は、上記のヒータ、攪拌装置及び濃度測定器(5)の動作を制御すると共に、濃度測定器(5)の測定結果に基づいて咀嚼能率評価値を導出する。