The invention discloses a wound protection device for the thoracic surgery department, and belongs to the field of medical treatment, the wound protection device comprises a fixed plate, the fixed plate is rotatably connected with a movable plate through a hinge, a fixed frame is arranged at the bottom of the fixed plate, a lifting frame is arranged at the bottom of the end, away from the fixed plate, of the movable plate, and a long groove is formed in the top surface of the movable plate; the device comprises a long groove, box bodies are arranged on the two sides of the long groove, roller bodies are rotationally arranged in the box bodies, the roller bodies are driven by a motor, an adjusting belt is installed on the roller bodies in a winding mode, a protection frame is arranged on the upper side of the long groove, and the protection frame and the upper side part of the adjusting belt are installed. The protection frame and the bed body are integrally designed, when a patient lies on the sickbed, the protection frame is used for supporting the chest of the patient, wound pain caused by the fact that a quilt directly covers the chest of the patient is avoided, meanwhile, the patient is not affected when turning over and shifting, and rehabilitation and nursing of the patient are facilitated.