A seat adjustment module includes: a base; a stop block, configured to stop forward and backward movements of a seating member in a seat; a rotary block, configured to, in response to being rotated along a first rotation direction, drive the stop block to slide, wherein the rotary block is further configured to, in response to being rotated along a second rotation direction, open a backrest adjustment switch in the seat; a handle, rotatably connected to one end of the rotary block, and configured to, in response to being rotated with respect to the rotary block, open a lifter switch of the seat; and a twistable adjustment member, rotatably connected to the base, and configured to be connected to a backrest elastic force adjustment mechanism, wherein the twistable adjustment member is configured to adjust a magnitude of an elastic force of a backrest in the seat.