To provide a snowboard binding capable of attaching snowboard shoes with a step-in action, surely locking the shoes in an attached state, and smoothly removing the shoes.

A snowboard binding for removably attaching snowboard shoes to a snowboard 12 comprises a catching mechanism 24 for catching the snowboard shoes with a step-in action and moving a locking member, thereby releasing the state of catching the snowboard shoes, along one direction, and a locking mechanism which moves the locking member in another direction different from one direction so as to lock the movement of the locking member in the one direction.