PROBLEM TO BE SOLVED: To acquire a plurality of pieces of biological information while simplifying a configuration by reducing the number of sensors for acquiring the biological information.SOLUTION: A biological information acquisition device is provided which includes a sensor 16 for detecting basic biological information showing a patients condition, and a biological information processing part 21A for acquiring a plurality of pieces of biological information from the basic biological information detected by the sensor 16. Since the sensor detects one piece of basic biological information to be a base obtained from the patients living body, and a plurality of pieces of biological information are acquired from the basic biological information, the plurality of pieces of biological information required to grasp the patients condition can be acquired with a simple configuration of providing only one sensor for acquiring biological information.
