To provide a vehicle seat with a lifter mechanism capable of supporting a seat cushion with high stability.

The lifter mechanism comprising pairs of right and left height adjusting means in a front side and a rear side of the seat cushion is arranged between a vehicle floor surface and the seat cushion. In the four height adjusting means, upper ends are attached to the seat cushion side and lower ends have lifter link members attached to the vehicle floor surface, respectively. Gear teeth are formed in the respective lifter link members and mesh with gears rotatably attached to the floor surface side or the seat cushion side. The rotation the gears of the pair of front side height adjusting means are mutually synchronized by a transmission mechanism and the rotation of the gears of the pair of rear side height adjusting means are also mutually synchronized by a transmission mechanism.