To properly evaluate the mounting state of a detection unit to a living body.SOLUTION: A biological analysis device comprises: the detector for generating a detection signal corresponding to the state of a living body； a mounting part for attaching the detector to the living body, the mounting part including a pressure sensitive part formed of a pressure-sensitive conductive resin and being stretchable elastically and a first electrode and a second electrode formed in the pressure-sensitive part； a calculation unit for calculating an evaluation index corresponding to a resistance value between the first electrode and the second electrode； and an evaluation unit for evaluating the mounting state of the detector in accordance with the evaluation index.SELECTED DRAWING: Figure 1【課題】生体に対する検出部の装着状態を適切に評価する。【解決手段】生体の状態に応じた検出信号を生成する検出器と、前記検出器を前記生体に装着するための装着部であって、感圧導電性樹脂で形成されて弾性的に伸縮可能な感圧部と、前記感圧部に形成された第１電極および第２電極とを含む装着部と、前記第１電極と前記第２電極との間の抵抗値に応じた評価指標を算定する算定部と前記検出器の装着状態を前記評価指標に応じて評価する評価部とを具備する生体解析装置。【選択図】図１
