The solid surface temperature distribution of mixed lubrication in point contact was studied by numerical analysis method and based on a unified Reynolds equation.The moving point heat source integration method was used to calculate the flash temperature,the partition coefficients of heat flux were determined by the balance equation of the temperature of two surfaces,and the temperature distribution of smooth surface and nonGaussian random roughness surface at different entraining velocity and slidetoroll ratio was calculated.The numerical results show that the temperature difference between two surfaces is very small,that is in line with the actual situation.The maximum temperature rise of both nonGaussian random roughness surface and smooth surface is in the outlet area,and the nonGaussian random roughness surface has higher temperature rise than the smooth surface.When the slidetoroll ratio is constant,the temperature rise is increased with the increasing of entraining velocity.When the entraining velocity is constant,the temperature rise is increased with the increasing of the slidetoroll ratio.