Abstract: A breaking-board holder that consists of two parallel support arms slidably and rotatably mounted on a bar that is firmly anchored to a solid structure, such as a wall or a floor. Each support arm comprises a transverse groove adapted to receive and hold the edge of a conventional martial-arts breaking board, so that the two arms together can be used to hold a board firmly in place. Because the arms are slidably mounted on the bar, the distance between them can be adjusted to accommodate boards of different sizes and users of different heights. Similarly, because the arms are rotatably disposed on the bar, the position of the board can be adjusted to face the direction needed for a given exercise. In order to facilitate the release of the board after breakage, the inner sides of the grooves in the support arms are beveled, which permits the inward folding of the board parts as they are taken apart by the blows exerted on them.