A ladder support device removably securable to the hitch receiver of a vehicle. The ladder support device comprises a frame having adjustable ground engaging legs. The frame includes a pivoting arm to be removably secured to the hitch of a vehicle to allow the frame to be positioned in a desired orientation relative to the vehicle. The frame includes a pair of brackets for receiving the feet of an extension ladder therein. Further, the frame comprises a pair of telescopic support arms that extend upward from the frame and that can be secured to a portion of the extension ladder so as to secure the ladder in an upright, angled orientation without having to rest the ladder against a support surface, such as the side of a building.