Floating protective device for preventing automobile from being flooded

The utility model provides a floating protective device for preventing an automobile from being flooded, which belongs to the technical field of automobile safety and solves the problem that the existing automobiles are easy to be flooded. The floating protective device comprises a water level detection device, a controller, a gas generator and a floating device, wherein an automobile can float on water by the aid of the inflated floating device, the water level detection device is connected with the gas generator, and a gas outlet of the gas generator is communicated with the floating device. The floating device is simple to mount, capable of preventing the automobile from being flooded by coming food so that loss due to the fact that the automobile is flooded is avoided.