Seat moving device and automobile seat

The utility model discloses a seat moving device and an automobile seat. A first transverse moving mechanism drives a seat body to transversely move, and then a lifting mechanism drives the seat body to ascend or descend; in the ascending or descending process, a four-bar parallel mechanism moves back and forth under the driving of a main motor, and simultaneously a curved bar slides along a pulley; because the curved bar has a curvilinear structure characteristic, when the tail end of the curved bar slides to the pulley, the seat body at the front end part of the four-bar parallel mechanism descends to the lowest position; when the front end of the curved bar slides to the pulley, the seat body on the front end part of the four-bar parallel mechanism ascends to reset. The seat moving device realizes translation as well as ascending and descending of the seat body just by adopting a simple structure, and is not only low in fault rate, but also easy to operate and good in automation performance.