A pixel circuit includes: a data input sub-circuit for transmitting a reference voltage to a first node; a second control sub-circuit disconnecting a first power terminal from a second node; a driving sub-circuit transmitting a signal of the second node to a third node; a first control sub-circuit transmitting the voltage of the third node to a second power terminal; a first storage sub-circuit storing the voltage between the first power terminal and the second node; and a second storage sub-circuit storing the voltage between the first node and the second node, wherein the data input sub-circuit is configured to transmit a data voltage of a data signal terminal to the first node, the second control sub-circuit is configured to transmit a supply voltage of the first power terminal to the second node, and the driving sub-circuit is configured to output a drive signal to the third node.