A boot support includes a disc solidly secured on a ski board, and a boot supporting bracket rotatably secured to the disc. A pawl is slidably received in the disc and movable to engage with the bracket, or is slidably received in the bracket and movable to engage with the disc, for releasably securing the bracket to the ski board. The bracket may be adjusted relative to the disc and the ski board to various angular position by the pawl without disengaging the bracket from the disc and the ski board.