Abstract: Based on the actual data acquired in site, the reversible V-H 5-pass rolling process was numerically simulated with explicit dynamic method and restart method. The results showed that in the rolling process the thick slabs tend to double bulging deformation, while the thin ones exhibit single bulging deformation in general. The vertical or edge rolling can correct the double bulging deformation effectively so as to avoid metal sandwiches on the edge of workpiece. Tracking the corner nodes, it is found that the slab corner metal flows to both forward and back sides of workpiece. The vertical or edge rolling can repair tiny defects to a certain extent, thus improving the edge quality of rolled strip. The approach proposed is available to analyze the reverse rolling process and will provide exact rolling parameters for each and every pass of V-H rolling.