PROBLEM TO BE SOLVED: To provide a slope device which is effective to improvement of the usability in a vehicle cabin when a slope member is stored in the vehicle cabin in an inverted manner.SOLUTION: A slope device is rotatably attached to an opening end part of a vehicle and includes: a slope member and lifting means which supports a rotation part provided at a base part of the slope member so that the rotation part may move in a vertical direction.SELECTED DRAWING: Figure 1