A pixel circuit, display panel and display apparatus are provided. The pixel circuit comprises a driving sub-circuit, whose first terminal is connected with first reference voltage source via power supply lead, and second terminal is connected with first terminal of a light emitting device; a charging sub-circuit, whose output terminal is connected with third terminal of the driving sub-circuit, which is configured to charge the driving sub-circuit before the driving sub-circuit drives the light emitting device to emit light; and a compensation sub-circuit, whose first terminal is connected with second terminal of the light emitting device, second terminal is connected with second reference voltage source, which is configured to compensate for voltage drop on the power supply lead of voltage which is provided to the driving sub-circuit from the first reference voltage source, so as to raise the uniformity of display brightness within display area of the panel.