easing past workshop production of thin sheet specifications shape, deviation and other issues, but also adapt to the slab in the future t hin direction of the development trend of the development of new products with great potential. In addition to select a reasonable mold, reduce accidents and leakage optimization pull the slab quality, for the development of new products laid the foundation. Finally, on the feasibility of this design were analyzed, making this the design to meet the actual demand. Involved in the design of the coefficient is also part of the scene from the experience of value to use part of the formula is from the actual experience of the formula, pleted the final design. K eywords: thin slab continuous casting and rolling, the laminar cooling , new rolling technolog y