Abstract: The high-temperature deformation behavior of both Nb/V/Ti-bearing and Ti-bearing HSLA rolled steels was investigated, with the single-pass reduction conducted on the Gleeble 2000 thermomechanical simulator and multi-pass quenching on a D450 experimental rolling stand. The results showed that the softening is restricted by the carbonitrides of microalloying elements Nb, V and Ti in the HSLA steel and, after 6-pass reduction, the austenite grain size is down to 8 μm through grain refining, i.e., the controlled rolling process is not implemented in the recrystallization zone. However, the recrystallization effect by single Ti element is weaker in the HSLA-Ti steel where the austenite grain size is down to about 11 μm after 6-pass reduction, i.e., the controlled rolling process is in the recrystallization zone.