The present disclosure provides a pixel circuit, a method for driving the same, a display panel and a display device. The pixel circuit includes a writing module configured to write a signal from a data signal end into a first node, a switch module configured to electrically connected the first node to a second node, a power input module configured to input a signal from a first power signal end into the second node, a resetting module configured to output a signal from a reference signal end to a third node and a fourth node, a driving module configured to output a signal from the second node to the fourth node, and a first maintenance module configured to stabilize potentials at the first node and the second node through the signals from the first node and the second node.