PROBLEM TO BE SOLVED: To provide a pulse discriminating apparatus and an electrocardiogram analyzing apparatus for discriminating a working pulse and a noise pulse contained in an electric signal from a living body with high accuracy. A pulse discriminating device (2a) for receiving an electric signal from a living body, in which a working pulse propagates at a predetermined time interval, and discriminating a working pulse and a noise pulse included in the electric signal. A pulse detection unit 9 that sequentially detects electric pulses included in the electric signal based on a change in signal intensity, and a predetermined interval based on a detection interval of the electric pulses detected by the pulse detection unit 9 and a predetermined time interval. The pulse discriminating unit 10 discriminates the electric pulse detected by the pulse detecting unit 9 into either an action pulse or a noise pulse based on the pulse time. [Selection diagram] Fig. 1【課題】生体からの電気信号に含まれる作用パルスとノイズパルスを高精度に判別するパルス判別装置および心電図解析装置を提供する。【解決手段】所定の時間間隔で作用パルスが伝搬する生体からの電気信号を受信し、電気信号に含まれる作用パルスとノイズパルスを判別するパルス判別装置2aであって、生体から受信される電気信号の強度の変化に基づいて電気信号に含まれる電気パルスを順次検出するパルス検出部9と、パルス検出部9で検出される電気パルスの検出間隔と所定の時間間隔に基づいて予め定められたパルス時間とに基づいて、パルス検出部9で検出された電気パルスを作用パルスとノイズパルスのいずれかに判別するパルス判別部10とを備える。【選択図】図1