Vehicle seat ground lock device

The utility model discloses a vehicle seat ground lock device which comprises a shell. The lower portion of the shell is provided with a U-shaped groove in the longitudinal direction, a latch hook block is hinged to the position, located above the U-shaped groove, of the shell, a latch hook piece is arranged on the lower portion of the latch hook block, the latch hook piece and the latch hook block form a seal locking hole, an unlocking handle is arranged above the latch hook block, an unlocking spring is arranged between the latch hook block and the shell, and a locking limiting block is arranged on the position, opposite to the latch hook piece corresponding to the U-shaped groove of the shell. The device has the advantages that the device is simple in structure and convenient to use, a locking function is achieved through the seal locking hole formed by the latch hook piece and the U-shaped groove in the shell, a seat is fixed to the floor through the device when used via a buckle, and the seat can be unfo