The disclosure relates to a pixel circuit which includes an LED, a storage capacitor, a driving transistor, and first to third switching transistors. The driving transistor is utilized to control connection/disconnection between a power supply voltage and the LED. The first switching transistor receives a first scanning signal for controlling connection/disconnection between a gate of the driving transistor and the power supply voltage. The second switching transistor receives a second scanning signal for controlling connection/disconnection between the storage capacity and a ground voltage. The third switching transistor receives the first scanning signal for controlling connection/disconnection between the storage capacity and a data voltage. The first scanning signal and the second scanning signal are in antiphase to each other. A driving method thereof is also disclosed.