The invention discloses a folding support for a wheelchair. The support comprises front feet, back feet, a seat board and swing rods. The upper ends of the front feet are in pivot joint with the upper ends of the back feet. The front end of the seat board is in pivot joint with the middle parts of the front feet. The lower ends of the swing rods are in pivot joint with the back feet. The upper ends of the swing rods are in pivot joint with the back end of the seat board. The folding support for the wheelchair has the following advantages: the support is easy to fold and convenient to use.