A glass plate bend-breaking machine 1 includes: a flexible endless belt 3; a supporting member 4 for supporting the endless belt 3; two glass plate receiving devices 7 and 7a respectively having glass plate receiving surfaces 6 and 6a; moving devices 8 and 8a for respectively moving the glass plate receiving devices 7 and 7a in an X direction and a Y direction perpendicular to the X direction; two press-breaking devices 9 and 9a; and moving devices 10 and 10a for respectively moving the press-breaking devices 9 and 9a in the X direction and the Y direction perpendicular to the X direction.