A pixel driving method applied to a flat panel display is provided. In a first time period, an Nth scan line provides a first scan voltage to a pixel row to conduct the corresponding thin film transistors (TFT). Also, an N+1th scan line provides a second scan voltage through the conducted TFTs to the corresponding first switches to conduct the first switches, and then a number of first data voltages of the corresponding data lines are outputted to the corresponding first pixel electrodes. The absolute value of the difference between the first scan voltage and the second scan voltage is not smaller than a threshold voltage of each TFTs.