Provided is a pixel circuit, including: a data writing unit, a driving unit, a reset unit, a light emission control unit, a storage unit and a light-emitting unit, wherein the data writing unit is configured to write a data signal input by a data signal line into a first mode; the reset unit is configured to reset the data signal and write the data signal into an output terminal of the driving unit; the storage unit is configured to store information on the data signal and transfer it to the driving unit; and the light emission control unit is configured to write a second power supply voltage at a second power supply voltage terminal into the reset unit and provide a light emission current to the light-emitting unit.