The invention discloses an air bag packaged type underwater sightseeing inspection device. The air bag packaged type underwater sightseeing inspection device comprises a fixed connecting plate and two closed cabins of the same structure. The fixed connecting plate is laid at the tops of the two closed cabins, a gap is left between the two closed cabins, outlook windows are arranged at the two ends of each closed cabin correspondingly, and rollers are arranged at the bottoms of the closed cabins; and a plurality of high-pressure oxygen bottles, an air bag and a high-pressure air box are placed on the plate face of the fixed connecting plate side by side, and the air bag covers the high-pressure oxygen bottles and the high-pressure air box. The air bag and the high-pressure air box are additionally arranged, the air bag has the two following functions that the air bag achieves the protective effect on the high-pressure oxygen bottles and the high-pressure air box, and if the phenomenon that gas leakage occurs on the high-pressure oxygen bottles and the high-pressure air box happens, gas cannot run away and can be sealed in the air bag; and if necessary, the air bag is inflated by using the high-pressure air box, and assistance is provided for upward floating of the underwater sightseeing inspection device.