A vehicular slope apparatus includes: a slope plate deploying to a lower end of a door opening portion; a guide rail extending in a deploying and storing direction of the slope plate; a drive shoe moving in an extending direction of the guide rail; a link member having a first connection point rotatably connected to a rear end portion of the slope plate and a second connection point rotatably connected to the drive shoe; a posture holding mechanism configured such that the slope plate moves in the extending direction of the guide rail in conjunction with the drive shoe; and a lift mechanism configured to form a rotation fulcrum of the link member between the first and second connection points and to rotate the link member by changing an interval between the rotation fulcrum and the second connection point to thereby lift the rear end portion of the slope plate.