The invention discloses a car door with an alternate inflating and uninterrupted air-supply umbrella storing device. The car door structurally comprises the umbrella storing device, a car door body and glass, and the glass is embedded into the top of the inner side of the car door body. Compared with the prior art, the car door has the beneficial effects that the umbrella storing device is additionally arranged on the car door, so that the car has the position special for umbrella storing, the phenomenon that a floor and a carpet in the car are wetted or are wet can be effectively prevented, thus the floor and the carpet in the car can be kept dry, the moldy phenomenon is avoided, accordingly the environment in the car can be always kept fresh and clean, meanwhile, the situation that the floor and the carpet in the car are damaged by chemical compositions contained in rainwater can also be prevented, the service life of the car is prolonged advantageously, meanwhile, two inflators aredriven to conduct alternate and uninterrupted inflating by a micro motor, thus umbrellas can be blown dry quickly, the moldy phenomenon of the umbrellas is effectively prevented, and accordingly the umbrellas are kept dry.