To provide a storage pocket on a bearing surface of a seat cushion by maintaining an appearance of the whole seat favorable and not giving a sense of incongruity to a seated occupant.

The storage pocket 3 to store buckles of a seat belt is provided to the rear of a bearing surface of the seat cushion 2 opposite to a rising base part of a seat back 1, the rear end side is sewn on a seat surface skin on a rear part of the seat cushion opposite to the rising base part of the seat back 1, the front end side is made up of hook-and-loop fasteners 5a, 5b, 6a, 6b furnished between itself and the bearing surface of the seat cushion 2 free to connect and disconnect and a pocket cover 4 to cover an opening port of the storage pocket 3 is furnished on a rear part of the seat cushion 2.