Long-distance coach seat with folding desk at back surface

The utility model discloses a long-distance coach seat with a folding desk at a back surface. The seat comprises a seat body, a desk placing slot, a support placing slot, a support and a desk; the desk is movably connected with the top inner wall of the desk placing slot through a hinge; the support is movably connected on the bottom inner wall of the support placing slot through a hinge; the desk placing slot is arranged on a backrest of the seat body and is used for containing the desk; the support placing slot is arranged in the desk placing slot and is used for containing the support; a fixing slot is arranged at the bottom of the desk; and the fixing slot is used for embedding the end parts of the support so as to fix the position of the desk through the support. The long-distance coach seat disclosed by the utility model is provided with the folding desk and the support of the desk so as to be convenient for travelers to place articles, such as snacks and a mobile phone, on the desk or to lie on the desk to have a rest and have a sleep; and the support can be folded when the desk is not used, and the desk is folded in the back surface of the seat so that the effective space of the travelers is not influenced.