An assisting apparatus is provided that a care receiver can easily board. When the trunk support member (51) is in the boarding position with respect to the care receiver (M) in the sitting posture, the underarm insertion portion (522a) of the underarm support member (52) is extended from the trunk support member (51) toward the rear of the care receiver (M) so as to be in the boarding orientation. When the trunk support member (51) is tilted forward to shift the care receiver (M) to the standing posture, the underarm insertion portion (522a) is extended upward and rearward from the trunk support member (51) toward the care receiver (M) so as to be in the standing-posture orientation.
