The invention belongs to the technical field of medical assistant articles, and discloses a field ambulance wounded seat. The seat comprises a seat cushion, a backrest and a support box. The bottom ofthe seat cushion is provided with a protruding block, and the bottom of the protruding block is arranged on the support box; one side of the support box is provided with an oxygen storage tank, the oxygen storage tank is connected with an oxygen delivery tube, the oxygen delivery tube includes a branch tube and an air suction tube, and the diameter of the air suction tube is smaller than the diameter of the branch tube; a piston barrel is arranged on the support box, and a piston is slidably connected inside the piston barrel; an air inlet and an air outlet are formed in the piston barrel, and check valves are respectively arranged on the air inlet and the air outlet; a double shaft motor is further arranged on the support box, one end of the double shaft motor is located in the support box, the other end of the double shaft is located outside the support box, and a disk is fixedly connected to one end of the double shaft motor; a first connecting rod, a second connecting rod and a third connecting rod are sequentially hinged to the support box. The seat solves the problems in the prior art that patents are inconvenient to move while sitting in seats, and have to maintain the sameposture all the time, and the whole bodies of the patients are stiff.