The utility model provides an automatic control system of upper plate conveyer, and automatic control technology field include motor, control box, delivery track, and the control end of motor is connected with the control box, and the delivery track is through clicking the drive. The utility model has the advantages of proximity switch, the photoelectric switch annex, the blank, preset position, the motor, the control box, the photoelectric switch body is mutually supported, and manually operation that will be has in the past become automatic operation, safe and reliable more when having improved efficiency. The scram switch in time stops in the time of can unknown mistake appearing in the system, and a plurality of scram switches are mutually supported, have made things convenient for the scram operation, have further increased system security nature.