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 which are located on the two sides of the moving part respectively; the fixed part is arranged in the recovery channel or the compression channel, the fixed part and/or the moving part comprises a winding, magnetic force exists between the fixed part and the moving part when the winding is powered on, and the elastic part applies elastic force opposite to the magnetic force to the moving part, so that the moving part moves 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 is met, the appearance of the piston body is not affected by the arrangement of the movable part, the fixed part and the elastic part, the production cost is reduced, the structure is simplified, and the vibration reduction piston has the advantages of being simple in structure, low in cost and the like.