The invention discloses a buzzer driving circuit comprising a boosting circuit, a voltage doubling circuit, a push-pull driver circuit and a pulse control circuit. The boosting circuit boost an inputpower supply to generate first driving voltage; the voltage doubling circuit doubles voltage of the input power supply to generate second driving voltage; the pulse control circuit is controlled by anexternal controller to generate a pulse driving signal; the push-pull driver circuit conduct push-pull alternation to the first and second driving voltage according to the pulse control signal to generate an alternating pulse driving signal with a difference of 180 degrees; and the buzzer is driven by the alternating pulse driving signal, and damages to the buzzer by high voltage can be avoided.