Stethoscope with heart rate detection function

The invention discloses a stethoscope with a heart rate detection function. The stethoscope comprises a stethoscope body, wherein the stethoscope body comprises a stethoscope head, a sound guide pipe,a three-fork connector and an earphone; the stethoscope head is internally provided with a resonance sheet. The stethoscope disclosed by the invention creatively comprises a heart rate sensor, a signal amplification module, a reference module, a comparing module, a counting module and a display module; an output end of the heart rate sensor is connected with an input end of the signal amplification module; the output end of the signal amplification module and the output end of the reference module are connected with the input end of the comparing module respectively; the output end of the comparing module is connected with the input end of the counting module; the output end of the counting module is connected with the input end of the display module. According to the stethoscope with theheart rate detection func