The assistance system includes a movable assistance device that assists the movement of the person being assisted, and a direction change assistance device that assists the direction change of the assistance device around a rotation axis perpendicular to the floor surface. The direction changing auxiliary device includes a mounting table that supports the assistance device by placing at least a part of the assistance device, and a rotation device that supports the mounting table so as to be rotatable about the rotation axis with respect to the floor surface. Prepare.介助システムは、被介助者の移動を介助する移動式の介助装置と、床面に対して垂直な回転軸線を中心とする介助装置の方向転換を補助する方向転換補助装置と、を備える。方向転換補助装置は、介助装置の少なくとも一部が載置されることにより介助装置を支持する載置台と、床面に対して載置台を回転軸線周りに回転可能に支持する回転装置と、を備える。