The invention describes a pixel circuit, a driving method thereof, a display panel and a display apparatus. The pixel circuit comprises a first transistor to a sixth transistor, a first capacitor, a second capacitor and a light emitting element, wherein the first transistor transmits data signals to a first node, the second transistor transmits first power source signals to the first node, the third transistor transmits the electric signals from the second transistor to a third node, a fourth transistor transmits the potential of the third node to a second node, the fifth transistor transmits referential voltage to the anode of the light emitting element, the sixth transistor transmits the potential of the third node to the anode of the light emitting element, the first capacitor couples the potentials of the first node and the second node, and the second capacitor couples the potentials of the second node and the third node. The light emitting unit in the pixel circuit may not emit light undesirably, and the threshold-voltage of the driving transistors can be captured accurately. Display consistency can be improved.