The invention relates to a method for synchronously storing and playing back fetal heart sound, heartbeat waveform and heart rate values. The storing method comprises the following steps of: acquiring fetal heart signals; dividing the signals into three paths, performing AD sampling on the first path to obtain heart sound signals, connecting the second path and an amplifier and then connecting a power amplification circuit, connecting the third path and an amplifying circuit and then dividing the third path into two paths, performing AD sampling on the first path of the third path to obtain heartbeat wave and a bar chart, and capturing, calculating and filtering the other path of the third path by a singlechip to obtain heart rate values after the other path of the third path is shaped by a comparator; and packing and storing the heart sound digital signals, the heartbeat waveform and the heart rate values as a fetal heart sound file. The playback method comprises the following steps of: reading the fetal heart sound file, extracting the heart rate value and heartbeat waveform data after unpacking, drawing the heartbeat waveform and the bar chart according to the waveform data, extracting the heart sound data at the same time and playing back the heart sound data after DA processing. The method can realize synchronous display, storage and playback of the fetal heart sound, the fetal heart rate, the heartbeat waveform and the bar chart, has more intuitive and clearer display, and can control the play of antenatal training music.