Abstract: A spoiler for a vehicle has an integral stop lamp cover. The stop lamp cover comprises a cover body configured to be open at an upper end thereof, and having a stop lamp insertion opening, a stop lamp receiving space, and a flange part formed on an upper end of the cover body; and an upper plate coupled to the cover body, having a size capable of covering the stop lamp receiving space, and defining the stop lamp receiving space and a parison fusing section to which a parison for forming a spoiler body is fused. The stop lamp cover is inserted into a mold when implementing the blow molding process, the flange part is fused to the outer surface of the spoiler body to be integrated with the material of the spoiler without requiring the use of a separate coupling means, and the parison is fused to the parison fusing section.