Car cover device

Disclosed is a car cover device. The car cover device comprises an inflating power mechanism, a gas circulating mechanism, a cover covering mechanism and a curled line placing and collecting mechanism. The cover covering mechanism is concealed between a scuttle of a car roof and the car roof with the scuttle of the car roof when the scuttle of the car roof of a car body is opened. The car cover device is started and the scuttle of the car roof of the car body is closed, thus the cover covering mechanism is unfolded. The cover covering mechanism is inflated by the inflating power mechanism through the gas circulating mechanism, thus the cover covering mechanism is inflated from the car roof to the outside and unfolded. The curled line is winded up by the curled line placing and collecting mechanism when the cover covering mechanism is closed by starting the car cover device, thus the cover covering mechanism is closed from the outer edge to the direction of the car body.