The invention discloses an overshoot suppression circuit for a low dropout regulator. The circuit comprises an operational voltage detection circuit unit, an overshoot suppression circuit unit and a bias circuit unit which are connected in sequence. The voltage detection circuit unit is used for detecting changes of an output voltage; the bias circuit unit supplies a bias voltage to the overshoot suppression circuit unit; the overshoot suppression circuit unit is used for generating a discharge current for output capacitance so as to suppress output overshoot. The overshoot suppression circuit for the low dropout regulator has the advantages of being simple in structure, low in power consumption and fast in response.