Abstract: According to the special characters of a multi-roll cold tandem mill, a roiling force prediction model based on fuzzy algorithm and cerebellum model articulation controller (CMAC) combined with the traditional model was designed to improve the precision of rolling force prediction. By comparing the values of the traditional rolling force model and the prediction model by CMAC with the measured ones, the precision of the prediction model by the fuzzy CMAC is much better than that of the traditional roiling force model and is more suitable for online use of a multi-roll cold tandem mill controlled by computer, which also meets manufacturing requirement of the field and receives better control effect of the shape and thickness.