PROBLEM TO BE SOLVED: To display a past waveform about one lead, and to allow easy confirmation of waveforms of the other leads corresponding to a partial section when having selected the partial section of the past waveform.SOLUTION: An electrocardiogram analysis device acquires electrocardiographic data based on electric signals inputted through electrodes of a plurality of leads attached to a subject. A waveform of the acquired electrocardiographic data is displayed, and is stored in a memory. When waveform display about one or more leads is performed, the electrocardiogram analysis device performs waveform display about the other leads necessary for at least analysis corresponding to a section selected as an analysis section of the wave display in response to a prescribed operation.
