Abstract: Front-end warping and bending of slab during hot roughing rolling is a common asymmetric shape defect. Traditional control methods typically adopt an integral control strategy for the slab head, which may result in excessive warping, leading to slab collisions with production line equipment and disruptions in rolling rhythm. To address this issue, a segmented control method for slab front-end warping and bending was developed and validated through finite element simulations. The proposed method consists of two stages,i.e. the sled coefficient action stage and the upper/lower roll speed reversal stage. Using machine vision technology, the amount of warping or bending between passes is detected, and the corresponding adjustment value is calculated through the segmented control strategy in combination with the front-end warping and bending monitoring and control system. The adjustment command is then automatically applied before the next rolling pass, thereby realizing automatic control of slab front-end warping and bending. Application results demonstrate that the segmented control method reduces the slab head warping height by 77.04% compared with integral control, significantly mitigating front-end warping and bending defects and enhancing the stability of product quality.