Through the analysis of the energy flow variation of hot rolled strip during laminar cooling process,energy balance equation was established using enthalpy method.Then enthalpy was obtained using phase transformation thermodynamics and dynamics.At last finite difference method(FDM) method was used to solve the temperature field and enthalpy field of the strip after hot rolled in laminar cooling.Experimental results appear to be in good agreement with the numerical simulation,thus showing the accuracy of the...