A new heat flux coefficient model and improved refreshing rules were introduced for optimizing coiling temperature model.The off-line simulation of the new strategy was performed by laminar cooling intelligent software,and the on-line application shows that the control of coiling temperature has been improved significantly. A new heat flux coefficient model and improved refreshing rules were introduced for optimizing coiling temperature model. The off-line simulation of the new strategy was performed by laminar cooling intelligent software, and the on-line application shows that the control of coiling temperature has been improved significantly.