Vehicle body luggage rack, vehicle falling-into-water self-rescue system and vehicle

The invention discloses a vehicle body luggage rack, a vehicle falling-into-water self-rescue system and a vehicle. The vehicle body luggage rack comprises a luggage rack body and further comprises a lifesaving airbag device arranged in the luggage rack body; the luggage rack body comprises a containing cavity, a pop-up window, a decoration cover and a limiting rope, and the containing cavity is used for containing the lifesaving air bag device. The drowning self-rescue system comprises the vehicle body luggage rack of the structure. The lifesaving air bag device further comprises a controller, a water level sensor, a water pressure sensor and a manual switch, and the controller is connected with the lifesaving air bag device and used for triggering the lifesaving air bag device to inflate. The lifesaving air bag device is integrated in the luggage rack and used for enabling a driver and passengers to float on the water surface; after the vehicle falls into water, the lifesaving air bag in the vehicle body lu