The present invention can make it easier for a medical practitioner to smoothly perform a medical action during measurement of biological information of a patient or other subject by the medical practitioner, and can also mitigate restriction placed on the orientation of the patient or other subject during measurement. The present invention is a bioinformation measurement system applied to a subject in need of cardiopulmonary resuscitation, the bioinformation measurement system provided with a bioinformation measurement part and a bioinformation output part, wherein the bioinformation measurement part includes a light-emitting part for radiating near-infrared light to the head of the subject, a light-receiving part for receiving light propagated through the inside of the head of the subject from the near-infrared light radiated from the light-emitting part, a light-detecting part for detecting the intensity of the light received by the light-receiving part, and a wireless transmission part for wirelessly transmitting information for specifying a change corresponding to an increase/decrease in the concentration or amount of blood hemoglobin on the basis of the light intensity detected by the light-detecting part, and the bioinformation output part includes: a reception part for receiving the information for specifying a change corresponding to an increase/decrease in the concentration or amount of hemoglobin, the information being wirelessly transmitted from the wireless transmission part of the bioinformation measurement part； and a determination part for monitoring, over time, blood-flow-change-related information based on the information, received by the reception part, for specifying a change corresponding to an increase/decrease in the concentration or amount of hemoglobin, and determining whether a ratio of the blood flow change exceeds a predetermined reference value when there is a change in the blood-flow-change-related information corresponding to the timin
