The invention discloses a novel phonendoscope comprising a pick-up part, a heartbeat counter, a conducting tube, earplugs and microphones; according to the phonendoscope, sounds are collected by the pick-up part; the sounds enter the microphones through the conducting tube and then enter the earplugs; the heartbeat counter is installed in the pick-up part. The invention has following beneficial effects: the larger contact area between phonendoscope heads and a body is, the better sound effect is picked up; the bigger and heavier the sound-amplifying stethoscope is, the better the picked-up sound effect is. By installing the heartbeat counter, it is more convenient for users to know their bodies; data can be acquired directly. Therefore, the work efficiency is increased and work quality isguaranteed. The sound picked up by the pick-up part can be enlarged by the microphones so that users can hear clearly and the accuracy is increased.