Heavy plate rolling processing in every single pass was simulated by the method of FEM.Distribution of the inflow strain on the specified path and related parameters (plate thickness H,pass reduction dH,rolling speed V) in the thickness direction of the plate center were studied.The results show that the plate thickness H and pass reduction dH have significant effects on the inflow strain on the specified path,while the rolling speed presents little effect.The relationships between the strain (PEEQ) and the plate thickness (H)/pass reduction (dH) were also established based on the simulation results. Heavy plate rolling processing in every single pass was simulated by the method of FEM. Distribution of the inflow strain on the specified path and related parameters (plate thickness H, pass reduction dH, rolling speed V) in the thickness direction of the plate center were studied. The results show that the plate thickness H and pass reduction dH have significant effects on the inflow strain on the specified path, while the rolling speed presents little effect. relationships between the strains (PEEQ) and the plate thickness (H) / pass reduction (dH) were also based on the simulation results.