This creation system provides one kind and stands up assistor, sets what on one of a seat and the chair back backup plate seat, and include seat board, installation part, handrail, support column and force application rod. Seat board is set on what seat and the front end of prominent what seat, sits what thereon with for user. Installation part is set on what seat board, on installation seat plate what seat. The front end of the prominent what seat of handrail. The Hou end of one end connecting base plate of support column, the other end are pivotally connected the Hou end of handrail, rotate to fix on handrail what seat board, and with for handrail relative to what support column. Force application rod sets the front underside of the handrail of the prominent seat of what, is exerted a force with the hand for user towards seat board direction, to contradict the front end of the seat board of prominent what seat, and makes seat board in tilting down state so that user's center of gravity biased forwards and smoothly stand.本創作係提供一種起身輔助器,其設於具有一椅面以及一椅背靠板之一座椅上,且包含座板、安裝件、扶手、支撐柱以及施力桿。座板設於座椅上且突出於椅面之前端,用以供使用者坐於其上。安裝件設於座板上,用以安裝座板於座椅上。扶手突出於椅面之前端。支撐柱之一端連接座板之後端,另一端樞接扶手之後端,用以固定扶手於座板上,並用以供扶手相對於支撐柱轉動。施力桿設於突出椅面之扶手之前端下表面,用以供使用者之手部朝向座板方向施力,以抵觸突出於椅面之座板之前端,並使座板呈向下傾斜狀態,使得使用者重心向前偏移而順利站立。