Super think sheet are high value added products among other cold rolled products. The production process and production equipment are difficult to develop and not easy to be understood and mastered. For a long time, they have been in monopoly of other countries. To address the problems existing in conventional temper mill for super thin strip rolling, three main technologies are applied to the new design and to the manufacturing. They are: a. technology for stabilizing product performance; b. technology for surface quality control and c. technology for improving yield and productivity of the line. These technologies successfully eliminate the difficulties of stabilizing mild steel performance and improve the surface quality and line productivity. Significantly, a serious of technical problems for conventional super thin strip temper mill are solved through indigenized technologies.