PROBLEM TO BE SOLVED: To provide a tissue hardness measuring device and the like which can measure a state of a living body easily without causing a sense of discomfort.SOLUTION: A tissue hardness measuring device 1 comprises a cup 101 adsorbed onto a surface of a living body so as to generate a space with negative pressure between the surface, and a transducer 102 for acquiring and outputting information indicating change of the pressure of the space generated between the cup 101 and the surface of the living body. A measurement information processing device comprises the tissue hardness measuring device 1, a reception part for receiving the information indicating the change of the pressure from the tissue hardness measurement device 1, and an output part for performing output according to the information indicating the change of the pressure, which is received by the reception part.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】違和感なく容易に生体の状態の計測を行なうことが可能な組織硬度計測装置等を提供する。【解決手段】生体の表面に、表面との間に陰圧された空間が生じるよう吸着されるカップ101と、カップ101と生体の表面との間に生じる空間の圧力の変化を示す情報を取得して出力するトランスデューサ102と、を備えた組織硬度計測装置1と、組織硬度計測装置1から圧力の変化を示す情報を受け付ける受付部と、受付部が受け付けた圧力の変化を示す情報に応じた出力を行なう出力部とを備えた計測情報処理装置とを有するようにした。【選択図】図1