Floating island type airport

The invention discloses a floating island type airport, which is high in stability, and comprises an overwater platform, a hollow sealed cabin layer, a hollowed-out overhead structure layer, a hollow buoyancy adjustment cabin layer, an inflating device, steel ropes and a concrete base. The overwater platform is positioned on the water surface, a flight deck is arranged on the upper surface of the overwater platform, the sealed cabin layer is positioned below the overwater platform and completely immersed in water, the overhead structure layer is connected between the sealed cabin layer and the overwater platform, the buoyancy adjustment cabin layer is positioned below the sealed cabin layer and provided with a water inlet, a water outlet, an air inlet and an air outlet, the inflating device is connected with the air inlet, the steel ropes are connected with the buoyancy adjustment cabin layer and used for fixing the floating island type airport, the concrete base is arranged below the buoyancy adjustment cabi