To provide an aid allowing a person who needs care, such as a handicapped or sick person who cannot stand by himself, to stand while a care giver or the like is lowering underwear on the lower half of the person's body before evacuation and while the care giver is raising the underwear after evacuation.

Knee stoppers 11a and 11b, for preventing forward movement of the positions of the knees of the person in a standing position with both legs resting on a horizontal plate 17 with the help of the care giver, are each formed in the shape of a gutter with a semicircular cross section. The knee stoppers 11a and 11b are supported in standing positions in predetermined spaced relationship above the horizontal plate 17 by means of a support member 13 fixed on the horizontal plate 17 and formed in a U-shaped cross section so that it is shaped like a bridge.