The invention discloses an elevator door plate automatically bending production line. The elevator door plate automatically bending production line is characterized in that the production line includes a charging conveyer belt, a slope positioning table, a robot, a bending machine, and a discharging conveyer belt, wherein the robot is arranged between the charging conveyer belt and the dischargingconveyer belt and the slope positioning table and the bending machine are respectively arranged at the two sides of the robot. The robot sucks up a door plate on the charging conveyer belt and placesthe door plate on the slope positioning table through a vacuum chuck arranged on a robotic arm. The door plate can slide on rolling balls to a lowest point of the slope positioning table by utilizingan own weight of the door plate, and then the door plate is positioned. After successful positioning, the robot sucks up the door plate again and puts the door plate into the bending machine to be bent. One side of the door plate is bent twice, and then the door plate is rotated 180 degree, and the other side of the door plate is bent twice. Then the bent door plate is placed on the discharging conveyer belt.