Abstract: Based on the mechanism model and data-driven hybrid model method, the thickness of the aluminum plate was predicted. The finite element analysis of the Al-1100 strip rolling process was carried out by Deform software. The prediction error of mechanism model was corrected by data-driven method. The results show that the error between the mixed model value and the actual value is in the range of 2.0%,and the qualified rate is 11.11% higher than that of the mechanism model value. The average error of the mixed model sample is 0.46% lower than that of mechanism model sample. The hybrid model value is closer to the actual value than the mechanism model value.