The present invention discloses a recreational vehicle cover, especially a vehicle protecting cover. It is a long rectangle box with a faced down opening and is made of rain-proof and sun-resistant material, comprising a plurality of external surfaces of a right wall and a left wall thereof respectively disposed with a row of laces extended downward; a plurality of internal surfaces of a plurality of upper ends of the right and left walls of the long rectangle box respectively disposed with a row of pocket portions each comprising a pocket with a faced down opening and a pulling rope extended downward; a left rear zipper disposed between a rear edge of the left wall and a left edge of a rear wall of the long rectangle box; and a right rear zipper disposed between a rear edge of the right wall and a right edge of a rear wall.