PROBLEM TO BE SOLVED: To provide a vital reaction recording device by solving such problems that, while a medical value of a mechanocardiogram is admitted high, a mechanocardiogram recording device is large and extremely expensive and the measurement performance thereof is also poor, and at least two medical professionals are required and can perform measurement only in a specific environment such as a sound proof room, accordingly, effective data for a measured living body truly needing the diagnosis using the mechanocardiogram cannot be obtained, and thereby the mechanocardiogram recording device is considered not useful for the diagnosis of a circulatory system.SOLUTION: A vital reaction recording device can be provided that is inexpensive in a small size like a notebook-sized personal computer, in which a two-dimensional sensor capable of simultaneously measuring the pressure change in a plurality of positions adjacent to a living body with respect to one pulsation to be measured, an electronic device of a personal computer level and a memory are fully used, and an apex cardiogram is measured, and also the time elapse of the living body information is also stored and can be used, and the living body information can be displayed as a digital image.
