The invention discloses a protection device for a barbell bench press in the field of fitness equipment. The protection device comprises a deck chair, protective boxes are arranged on both sides of the deck chair, the interior of each protection box is hollow, openings are formed in the tops of the protection boxes, vertical supporting rods are slidingly connected to the openings, and a transverseconnecting rod is connected between the supporting rods, the bottom of the connecting rod is connected to a linkage plate, and the linkage plate is provided with a circular hole for a barbell rod topenetrate through. Airbags are arranged below the supporting rods, located in the protection boxes and provided with air valves. The air valves are electrically connected with a first pressure sensor,the first pressure sensor is located on the deck chair, the inner walls of the airbags are provided with second pressure sensors, the second pressure sensors are electrically connected the air valves, the airbags are connected with air pumps, and the air pumps are connected with trigger buttons. According to the scheme, the airbags can restrict the downward movement of the barbell rod and ensurethe safety of human life.