The invention discloses a seat damper convenient to adjust. The seat damper comprises a buffer cylinder. A sleeve is welded to the outer wall of the top of the buffer cylinder, and the inner wall of one side of the sleeve is slidably connected with a sliding block. A damping spring is welded to the outer wall of the bottom of the sliding block, and the bottom end of the damping spring is welded tothe outer wall of the top of the buffer cylinder. A mounting through hole is formed in the center of the outer wall of the top of the sleeve, and the inner wall of one side of the mounting through hole is slidably connected with a sleeve rod. The outer wall of the bottom of the sleeve rod is welded to the sliding block. A fixing plate is welded to the outer wall of the top of the sleeve rod, anda T-shaped through hole is formed in the outer wall of the bottom of the buffer cylinder. A matched guiding ring is welded to the inner wall of one side of the T-shaped through hole, and the inner wall of one side of the guiding ring is slidably connected with a movable rod. According to the seat damper, the damping strength can be adjusted, the adjustability of the seat damper is improved, a seatcan be prevented from shaking by a large margin, and the damping coefficient during seat shaking can further be increased, so that the seat is more stable.