Ladder device

The utility model provides a ladder device capable of easily changing the ladder posture and appearance. The ladder device comprises a supporting component fixed on a wall surface between a lower floor and an upper floor or a floor board surface of the upper floor, a ladder part which is capable of moving up-and-down opposite to the supporting component in a freely switching mode of a standing posture that the ladder is capable of standing uprightly opposite to a wall surface and a placing posture that the ladder is placed along the wall surface almost upright. In addition, the ladder part is capable of freely rotating around the supporting component. Moreover, a spring component for providing spring force opposite to the supporting component is arranged in a ladder column of the ladder part at the direction of raising up the ladder part.