: In the process of hot strip rolling prediction of the temperature distribution within the strip along the length of the finishing mill is essential,physical properties as well as the final dimensions of the strip are related to the temperature distribution within the metal being rolled.In this thesis a comprehensive model is presented for prediction of temperature distribution of hot rolled strip in the finishing mill.This model is three-dimensional and none of the mechanisms of heat transfer is omitted,velocity field in the contact area is modeled precisely and the component of velocity along the strip thickness is not neglected.Heat transfer of work-roll is solved with the heat transfer of strip simultaneously.An important parameter in the operation of hot rolling mill is the cooling mechanism of work roll. In the boundary condition for water spray, parameters such as spray angle,the angle of spray impact on work roll,the distance of header from work roll and water pressure are variable.In rolling,the work-roll is used as a tool to deform the strip,resulting in rolling contact between the roll and strip and creating thermal resistance along the interface.A wide range of modeling approaches or correlations has been developed to study the interface heat transfer phenomena during rolling.This model also based on empirical relationships in order to take into account heat transfer coefficients in every region of the strip,interface friction factor in the roll gap, pressure variation in contact area,emissivity and temperature-dependant physical properties of metals.It takes into account the heat generated by the frictional sliding between strip and work-roll,deformation heat in the bite region,heat losses due to roll chilling,radiation and convection,rolling speed,continuous thickness reduction during rolling, growth of oxide layer and its effect on strip temperature. Using a finite-volume approach,the governing differential equations as well as the boundary conditions are discretized,which are then solved numerically to predict the temperature distributions.The stability of the solution was examined by changing the grid sizes.the numerical results are validated against published work in the literature for certain special operating conditions.The impact of roll speed, frictional sliding and deformation heat,oxide layer and conduction along the length and width of the slab on the distribution of heat flow are demonstrated through the temperature distribution plots.To verify the validity of the results,a comparison is carried out between the numerical results and plant measurements. Keywords :Finishing mill, Temperature distribution of strip,Thermal modelling, Numerical modelling