PROBLEM TO BE SOLVED: To provide a respiration and/or pulse measuring device worn on a wrist that measures a respiration rate and/or a pulse rate with a high degree of precision.SOLUTION: A respiration and/or pulse measuring device includes a controller 22 for processing detection signals from a plurality of respiration/pulse detection devices as required, and calculating a respiration rate and/or a pulse rate. The controller 22 includes respiration threshold calculation means 26 for calculating a respiration threshold (and/or pulse threshold calculation means 38 for calculating a pulse threshold), respiration signal extraction means 28 for extracting a temporary respiration signal based on the respiration threshold (and/or pulse signal extraction means 42 for extracting a temporary pulse signal based on the pulse threshold), and respiration determination means 30 for determining an actual respiration signal for actual respiration, based on the temporary respiration signal (and/or pulse determination means 44 for determining an actual pulse signal for an actual pulse, based on the temporary pulse signal).