A binding device for snowboard according to the invention includes: a base member mounted on a snowboard; a rotor member provided rotatably on the base member and having attaching means for attaching a binding device and fixing means for fixing a shoe on the top face thereof; a holding member mounted on the top face of the base member, for holding the rotor member rotatably; and restoring means provided between the base member or the holding member and the rotor member, for restoring the rotated rotor member to a reference position.