The invention discloses a cross button. Heart-shaped cross button thread holes (1) are sewn on a garment or other materials by threads (6) in up-down and left-right directions according to the shape of a cross, during sewing, a heart-shaped cross button body (2) and a cross button body (3) are sewn at a cross-shaped position on the garment, a front face of the cross button body (3) is a hole-free smooth face, a cross button concealed thread hole (4) is formed in a back face of the cross button body (3) and is used for sewing the garment, and a cross button concealed thread hole spherical hole wall (5) can enable the cross button body (3) to rotate conveniently and freely to be inserted into a corresponding button hole of the garment during usage.