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

The invention discloses a vibration damping piston of a vibration damper, the vibration damper and a suspension system, and the vibration damping piston comprises a piston body, a piston rod and a piston rod, the moving part is movably mounted in the mounting cavity and matched with the piston body to define a recovery channel and a compression channel, and the recovery channel and the compression channel are located on the two opposite sides of the moving part respectively; the first fixing piece is mounted on the piston body; thrust or pulling force for driving the moving part to be far away from or close to the first fixed part exists between the first fixed part and the moving part so as to adjust the through-flow area of the recovery channel and the compression channel. According to the vibration reduction piston, recovery damping force and compression damping force of different magnitudes can be formed, the vibration reduction requirement under more working conditions can be met, the appearance of the piston body is not affected by the arrangement of the moving part and the first fixing part, and the vibration reduction effect can be achieved without changing the appearance structure of the vibration reduction piston and the structures of other matched parts on a vibration absorber. The production cost is reduced, and the motion space stroke of the vibration reduction piston is guaranteed.