A vehicular slope apparatus (1) includes a first slope section (10) that is rotatably connected to a body of a vehicle, and a second slope section (20) that is slidably connected to an extension side of the first slope section (10), the first slope section (10) including assistance means (50) that applies an assistance force (Mf) in a direction in which the first slope section (10) rotates upwardly and, the assistance force (Mf) being larger than a downward moment that occurs at a center of gravity (M1) of the entire apparatus (1) when the entire apparatus (1) is horizontalized in a state in which the second slope section (20) is received within the first slope section (10), and is smaller than a downward moment that occurs at a center of gravity (M2) of the entire apparatus (1) when the second slope section (20) is extended from the first slope section (10) to a maximum extent, and the first slope section (10) rotating when the second slope section (20) has been extended to a predetermined extent so that an end of the slope apparatus comes in contact with the ground.
