To establish the rolling plan of cold-rolling flattening set is very complicated,it is restrained by several constraints of rolling schedule.Operator’s subjective and other human factors also affect the rationality of plan arrangement seriously.Its result causes many abuses such as overusing transition strip,high-frequent roller switching,no-fully utilization of rollers,low arrangement rate of the plan.Therefore,we have initially developed a practical optimization model of rolling plan and schedule,which could be established and optimized by computer automatically,and a dynamic alignment module which have friendly UI according to the experience of operators.They have greatly enhanced the system usability.This system takes full advantage of relationship between the roller roughness and the rolling weight,reasonably arranges rolling based on different roughness demand,effectively enhances the use factor of roller and the smooth quality of steel string coil. A practical and effective scheduling optimization algorithm and rolling scheduling optimization applications system was developed based on the study of mixed hot rolling scheduling optimization model of carbon steel,stainless steel,stainless steel and carbon steel cross-rolling.The online application indicates that the model and algorithm is designed reasonable,practical and effective.This model system can significantly improve the scheduling efficiency and quality and it’s also very positive in reducing heating energy consumption,enhancing the volume of units rolling plan,and optimizing the production of hot-rolled unit organization and planning and scheduling. To establish the rolling plan of cold-rolling flattening set is very complicated, it is restrained by several constraints of rolling schedule.Operator’s subjective and other human factors also affect the rationality of plan arrangement seriously .Its result causes many abuses such as overusing transition strip , high-frequent roller switching, no-fully utilization of rollers, no-fully utilization of rollers, no-fully utilization of rollers, no-fully utilization of rollers, no-fully utilization of rollers, no-fully utilization of rollers, alignment module which have friendly UI according to the experience of operators. they have greatly enhanced the system usability. This system takes full advantage of relationship between the roller roughness and the rolling weight, reasonably arranges rolling based on different roughness demand, effectively enhances the use factor of roller and the smooth quality of steel string coil. A practical and effective sche duling optimization algorithm and rolling scheduling optimization applications system was developed based on the study of mixed hot rolling scheduling optimization model of carbon steel, stainless steel, stainless steel and carbon steel cross-rolling. The online application indicates that the model and algorithm is designed reasonable , practical and effective. This model system can significantly improve the scheduling efficiency and quality and it’s also very positive in reducing heating energy consumption, enhancing the volume of units rolling plan, and optimizing the production of hot-rolled unit organization and planning and scheduling.