Abstract: A driving system and a method for a dot-matrix light-emitting diode display device. The driving system comprises a controller, a scan line driver, and a signal line driver. The controller provides a scan line control signal and a signal line control signal. The scan line driver generates a scan line driving signal in response to the scan line control signal. The scan line driving signal is divided into an ON period and a OFF period. The signal line driver generates a signal line driving signal in response to the signal line control signal. The signal line driver generates a discharging control signal or a charging control signal during the OFF period so that the signal line driver and the plurality of signal lines form the discharging or charging paths. Therefore, the parasitic capacitors on the scan lines are discharged or the parasitic capacitors on the signal lines are charged.