Abstract: In order to master the SmartCrown system for profile and flatness control first applied on a 1700mm tandem cold roiling mill, the SmartCrown work roll wear pattern was obtained on the basis of large amount of measured roll contours. A prediction wear model of the SmartCrown work roils was built up by using genetic algorithm. The effect of the roll wear contour pattern on profile and flatness performance was analyzed by the developed three-dimensional finite element analysis model of a roll stacks system with ANSYS software. A new rolling strategy was brought forward for application of the new SmartCrown system.