The utility model provides a settled breadth machine module. A transmission side module of the settled breadth machine module consists of three slopes and a curved surface. A crossing angle alpha 1 of the first slope and the horizontal plane is less than 20 degrees; a crossing angle alpha 2 of the second slope and the horizontal plane is less than 13 degrees; the second slope is tangent to the curved surface; a crossing angle alpha 3 of the third slope and the horizontal plane is 12 degrees; and the third slope is tangent to the curved surface. The horizontal length of the first slope, the horizontal length of the second slope, the horizontal length of the curve and the horizontal length of the third slope are in a ratio of 12:22:23:11. As the shape of working surface of the transmission side module is changed, the settled breadth machine module is beneficial to balance and consistence of the metal flow, the curve mode of the working surface on one side of the module can be flexibly regulated according to the two-side temperature difference of the width direction of a furnace discharge slab, thereby effectively controlling the lateral bending of the slab laterally pressed by a settled breadth machine; moreover, the productive technology can be greatly simplified as well as side bending defects can be reduced and the quality of the products can be improved.