The display driving circuit according to an embodiment of the present disclosure includes a characteristic collector, a comparator, a timing controller and a gate driver. The gate driver includes shift register units each including a first pull-down circuit and a second pull-down circuit, and is provided with a first pull-up voltage terminal and a second pull-up voltage terminal; the characteristic collector is configured for collecting a voltage of the first pull-up voltage terminal or the second pull-up voltage terminal, and for outputting a characteristic voltage; the comparator is configured for comparing the characteristic voltage with a reference voltage of a reference voltage terminal; when the comparison result indicates that the characteristic voltage is greater than or equal to the reference voltage, the timing controller generates a timing control signal such that the first pull-up voltage terminal and the second pull-up voltage terminal are caused to output a DC voltage under the control of the timing control signal.