To provide a movement assisting device which permits a user to make a transferring action by a simple structure.

The movement assisting device includes a frame section supporting the body of a user 2, a flat plate 13 connected to the frame section and having flatness, a lifting mechanism 15 lifting and lowering the flat plate 13 nearly vertically, and a sliding mechanism 21 sliding the flat plate 13 nearly horizontally. The flat plate 13 is displaced by the lifting mechanism 15 and the sliding mechanism 21 to the destination 3 of transfer or its vicinity and sliding the buttocks of the user 2 on the flat plate 13 by using the flatness of the flat plate 13 to make the user 2 transfer from the movement assisting device 1 to the destination 3 of transfer or from the destination 3 of transfer to the movement assisting device 1.