To easily and accurately acquire an electrocardiogram waveform in a device for simultaneously measuring blood pressure, an electrocardiogram, and other vital signs. A vital sign measurement device 100 is provided with a blood pressure measurement cuff 20 for pressing on a certain measurement part of a subject, one or a plurality of biosignal sensors 30, 40 for detecting a biosignal of a separate measurement part of the subject, a plurality of electrodes 51-54 for contacting the skin of the subject and detecting physical electrical potentials, and a device body 10. The device body 10 measures blood pressure of the subject by increasing and decreasing the cuff pressure in the cuff 20, measures vital signs other than the blood pressure and electrocardiogram of the subject on the basis of biosignals detected by the biosignal sensors 30, 40, and measures the electrocardiogram of the subject on the basis of the physical electrical potentials detected by the plurality of electrodes 51-54. At least one of the plurality of electrodes is provided to the cuff 20, and at least one of the plurality of electrodes is provided to the biosignal sensors 30, 40.
