Vibration damping piston of vibration damper, vibration damper, suspension system and vehicle

The invention discloses a vibration damping piston of a vibration damper, the vibration damper, a suspension system and a vehicle, the vibration damping piston is provided with a recovery channel and a compression channel, and the through-flow area of the recovery channel and the through-flow area of the compression channel can be independently adjusted. According to the shock absorber disclosed by the embodiment of the invention, the through-flow areas of the shock absorption piston, the recovery channel and the compression channel can be independently adjusted, so that different recovery damping forces and compression damping forces are formed, the shock absorption requirements under more working conditions are met, and the shock absorption effect and the damping force adjustment flexibility are improved.