The present invention discloses an assisting chair cushion. The assisting chair cushion includes a base, a cushion body and a fixing assembly. The cushion body disposes on one side of the base. The fixing assembly is disposed between the cushion body and the base, and the fixing assembly connects the cushion body and the base. The fixing assembly includes a first fixing member, a second fixing member and an elastic support member. The first fixing member disposes on the base, and the first fixing member has a first adjusting portion. The second fixing member pivots to the first fixing member, and the second fixing member disposes on the cushion body. One end of the elastic support member pivots to the second fixing member, and another end detachably pivots to the first adjusting portion.
