Automobile drowning protection device

The invention discloses an automobile drowning protection device, which comprises an air bag group, a compressed air bottle group, an electric valve group, a water sensor and a controller. The air bag group comprises front air bags arranged on the front end of an automobile engine compartment, middle air bags used as foot pads and arranged in an automobile cab, and a rear air bag arranged in an automobile trunk; the compressed air bottle group comprises at least one compressed air bottle, and the front air bags, the middle air bags and the rear air bag are connected with the compressed air bottle group through high-pressure air pipelines; the electric valve group comprises at least one electric valve arranged in the high-pressure air pipelines; the water sensor is arranged in the automobile engine compartment; and the controller receives a detection signal of the water sensor and controls the switching state of the electric valve group. The automobile drowning protection device provided by the invention has n