Numerical simulation model of rolling for automobile beam was established, and the reliability of numerical simulation model was verified by energy method and experimental method. Comparing and analyzing the two process schemes, the result shows that the process scheme 1 is superior to the process scheme 2. By extracting the stress and strain distribution of the formed slab at each position, the deformation of the slab during the forming process was analyzed. The results show that the bottom edge of slab is not deformed, the deformation at the corner of slab is the largest, the stress reaches 531 MPa or more, and the material is plastically deformed. However, the deformation at the edge of slab affected by slight extrusion is small, and the stress distribution is between 200 and 400 MPa, which is within the yield range. Furthermore, through extracting and analyzing the cross-section profiles of the slab before and after springback and the amount of springback for nodes, the results show that the springback of automobile beam is less than 0.1 mm by rolling technology, and the production requirements are met fully.