The basic functions of the full automatic air door are as follows: under fully automatic control, when the vehicle and crew pass. The air door is automatically opened, and the vehicle or the staff is automatically closed after passing, and the utility model does not need manpower to open, and is convenient and practical. Two electrical and mechanical double locking are realized between the two throttle doors, which completely avoids the situation that the two doors are opened, and is safe and reliable. With manual control function, can use the remote control or manual button to artificially control the opening and closing of the air door. Every air door adopts anti wind design, which ensures that the door can be opened and closed by manpower on the condition of power failure. With emergency lifting locking function, under special circumstances, two air door locking can be lifted, so that the two sets of air dampers are locked in the open state. With LED screen alarm and voice alarm two kinds of alarm way, when the vehicle passes, can send out a variety of voice prompt signal, under the fault condition can issue sound light alarm signal.