A bstract Assistance robot A n assistance robot cap able of supporting a sitting operation of a care receiver in various usage states. In the assistance robot, operation processing based on the sitting path includes: a retracting process for retracting a holding member 5 and lowering or raising the holding me mber to a fixed sitting position at which a buttock portion of the care receiver is positioned at a specified height from a floor surface and above a seat； and a lowering process for lowering the holding member from the fixed sitting position until the car e receiver is sitting on the seat. 10 ( FIG. 6 )
