This creation system solves the problem of that known user be easy to cause user's knee to bear from the posture that the posture squatted down/sat down is converted into standing. This creation system includes: an auxiliary block,It is pivotally connected one predetermined position of what with a first end,One second end of the auxiliary block is equipped with one first sliding part; One power assist unit,Relatively low what auxiliary block,The power assist unit system includes a shaft,One end of the shaft connects one end of a connecting rod,The other end of the connecting rod has one second sliding part,Second sliding part cunning sets what first sliding part,With the shaft rotation when,Make the connecting rod with the shaft swing,And be displaced by the first sliding part of the connecting rod with respect to second sliding part,Put the auxiliary block with respect to the predetermined position pivot,And then user is assisted to stand up,Reduce the burden of user's knee.本創作係解決習知使用者從蹲下/坐下的姿態轉換成站立的姿態,容易造成使用者膝蓋負擔的問題。本創作係包含:一輔助座,以一第一端樞接於一預定位置,該輔助座的一第二端設有一第一滑動部;一動力輔助單元,相對低於該輔助座,該動力輔助單元係包含一轉軸,該轉軸的一端連接一連桿的一端,該連桿的另一端有一第二滑動部,該第二滑動部滑設於該第一滑動部,以在該轉軸轉動時,使該連桿隨該轉軸旋擺,而藉由該連桿的第一滑動部相對該第二滑動部位移,使該輔助座相對該預定位置樞擺,進而輔助使用者起身,降低使用者膝蓋的負擔。