Abstract: The uneven cooling in laminar cooling stage will generate large residual stresses, resulting in waves and warping of the strip.The model was established by ABAQUS software and embedded in FORTRAN-language editing to realize the three-way coupling calculation of the temperature field-phase transition field-stress field in the process of LG610L hot-rolled steel strip.The model was verified by field measurement and microstructure analysis.The influence law of initial temperature difference and edge shielding technology on residual stress size and distribution in laminar cooling stage was studied.The results show that reducing the initial temperature difference reduces the residual stress; the edge shielding technique can reduce the stress difference of the edge part and improve the uniform distribution of residual stress.