The invention discloses a pixel circuit, a driving method of the pixel circuit, a display panel, and a driving method of the display panel. The pixel circuit comprises a first transistor, a drive transistor, a second transistor, a threshold value compensation module, a first capacitor, a second capacitor, a light-emitting element and a fifth transistor, wherein the first transistor is used for transmitting a signal of a data signal end to a first node by responding to an enable signal of a scanning signal end; the threshold value compensation module is used for transmitting the signal of the first node to a second node through the drive transistor by responding to an enable signal of a second on-off control signal end; a first pole plate of the first capacitor is electrically connected tothe first node. For the pixel circuit provided by the invention, the data writing stage is carried out first, the initialization stage, the compensation stage and the light emitting stage are then carried out, the time of the compensation stage of the pixel circuit can be increased, and the compensation effect is promoted.