This utility model relates to a movable, single-piece door cover placed on the outside of a civil defense door, comprising a vertically oriented door cover panel; at least one baffle, or multiple baffles, all positioned on the same side of the door cover panel; the baffles are vertically oriented; and at least two rollers are provided at the bottom of the door cover panel. This utility model can achieve the desired changes to the appearance and color of the civil defense door without affecting its functionality.